Gorgeous rifle with unique fuctions, features, and rarity. I hope if finds a good home. Only issue is having to go to a gunsmith to figure out the ammo.
before i started watching your video's I thought for a semi-auto rifle you either had "direct impingement," some sort of piston, or roller-delay type action. You've really opened my eyes, thanks Ian!
That is one beautiful rifle, and I love how it's action works and looks. Very aesthetically pleasing. And idea on what gives the bolt that purplish color?
case hardened i believe. you can get steel to be an amazing blue colour if you get the temp just right.. check out a channel called ClickSpring he shows you how
Having a semi-auto rifle seems a bit pointless if it only has a 3-round magazine, but I guess they wanted it to sit flush. I imagine the military trials version would have had a much larger magazine.
Perhaps one of the factors in these guns not becoming widely manufactured was the fact that they developed most of them around the time of the Great Depression(1929-1939).The Great Depression is often seen as an American economic disaster but it really effected the whole world.Especially industrial countries that relied heavily on exportation.
toggle orgasm right now, this rifle is insane! The operating principle is not that complex, yet the designer still managed to make it very complicated and interesting
+wood1155 From what I know / can find. The cartridge is almost identical in size and performance to 450/400 23/8" The bullet weight can range anywhere from 180 - 400 grains but 185-250 is most common. it has a bore size of about 10.3mm but the grove size is closer to 10.7 (so near .400"). Although the cartridge has all but been obsolete for a century, it is still in use in a few isolated areas the foremost being the Swiss canton of Grisons where it is the mandatory calibre for all hunting - hence it is still chambered by european companies such as Blaser and ammunition offered by the likes of RWS(185 Gr expanding cone point @ 2935 fps)
Seems like a much more sensible blow-forward gun compared to the other ratcheting Rube Goldberg contraptions. I would even say it's elegant! Since it's a toggle-lock, the actuating motion to break the knee can be of any direction as long as there's a perpendicular force acting on it.
I love the mechanics of these older semiautomatic firearms, mainly pistols. But when a rifle has something unusual or unique im all in! I'd own this rifle if I had the money lol
Having an op-rod that pulls in tension instead of pushing in compression seems a good deal smarter, all other considerations of operation aside. Have there ever been gas piston arms with enclosed pistons that stroke forward instead of back? I'd imagine fouling of the muzzle device to be the major liability here, or at least a real concern.
Teutonic engineer in me = Geeked. Big Bore Lover in me = Geeked. Old world craftsmanship,styling in a futuristic (back then) design. Would love to have a rifle like that.
My best guess would be a 10.3x57 Mauser. Second guess would be a 10.75x57 Mauser, but that is less likely as a nominal 350 gr bullet was used. A chamber cast would be required to be certain, but I suspect that isn't going to happen.
Ian looks busy..... so many reviews on so many weapons.... well least no fair use notification problems, many other youtubers have still problems with that and youtube seems lost on the subject. XD keep it up !
Ian, That mechanism kind of looks like the Japanese Trials Gas-Operated Pedersen Rifle that you did a video on earlier this month. Both are toggle locked with the "op rod" going forward. Do you think there was any relationship?
ChristophInns , I am wondering. If I were a Japanese project manager and I had to design a rifle one of the first things I would do is get every advertisement for any existing rifle of similar specifications. Did the guy get catalogs?
Hi Ian, first of all thanks for the interesting clip & sharing this nice rifle with us One question came up: i never knew of a Swiss Rheinmetall company. From all that i know Rheinmetall is a german manufacturer, and always has been (located in Duesseldorf with their first production site in 1889) I heared they have bought Solothurn AG (swiss manufacturer) after world war one, or at least sharings of the company - so they would be able to get around the versailles treaty and continue development of small arms at that time. Karl Heinemann was a german engineer for Rheinmetall. Do you have more details about any swiss involvement in this rifle? Keep up the good work :)
+Forgotten Weapons thank´s a real lot for the link - seems to confirm my information :) That page explains indeed pretty detailed how german Rheinmetall company used Solothurn in switzerland for their plans to develop weapons like self-loaders and machineguns. Interesting to figure out how busy german arms development was in secrecy after ww1, still during the "Weimarer Republik". Some interesting history aspects there behind this gun - similar to the mg34.
hi, as far as i know, rheinmetall is a german company, wich, in order to work around the versailles treaty, bought a swiss arms manufactur company called Solothrunes AG. i dont know if thats related to this gun, but i never heard about a swiss rheinmetall.
+Werner Heisenberg Rheinmetall-Borsig openly used the capacities of the Waffenfabrik Soluthurn to produce weapons they couldn't develop and manufacture in Germany. These were mostly export weapons, but some weapons production was done directly under the Rheinmetall-Borsig label and relatively openly so, in spite of the violation of the treaty.
Ian, please do a show of a European sporter rifle with double-set triggers or point me to a previous video. I feel that setting trigger systems just don't get enough attention as they are very wonderful as aids of accuracy. Your vids are auto-liked without regret every time! : )
"It's a little less expensive" Estimated price: $35,000 to $60,000 Yeah, I'll jump right on that. Really cool video and firearm though, it looks like a slick system for an early semi-auto rifle.
+KarlBunker Well for one, the "Bang" gas system is not a very good gas system, designers would try it later on the Gewehr 41 and M1 Garand and found how quickly fouled it got. Not super-reliable at all.
how does a horizontal toggle mechanism affect lateral accuracy? imagine youd get a hell of a sideways kick - much more difficult to compensate for than a vertical one impractical as it may be, itd be really cool to see a symmetrical version of this - toggles flap out on both left and right sides simultaneously
+IosueCanadensis Because the operating process starts at the end of the barrel, I suspect that by the time it initiates the overwhelming force applied on recoil is directly along the axis like a bolt gun. By the time you start responding to the kick that's all you'll mainly feel and any sideways torque would be minimal.
Rheinmetall is a german company located in Düsseldorf, Nordrhein-Westfalen. They are manufacturing the cannon-barrel of the german "Leopard-2" Tank. Definitely not a swiss company ;)
Yes, but they have production in several countries including Switzerland, so this is made in Switzerland by a German based company with production ther. Kinda like Apple is a US company with production in China.:)
+TheDeathlord21 The Treaty of Versailles prohibited the development and production of military self-loading rifles in Germany at the time. The weapon was made in Switzerland (which is exactly what Ian said) to circumvent that little detail.
The toggle cover is an interesting idea, and the toggle unlocker is much simpler than a Pedersen's. Wouldn't this kind of system be very sensitive to dirt or mud in the front of the rifle though?
I would have guessed a 40 caliber rifle in the 30’s would have ment one thing, Afrika. Depending on the powder charge it may have been just the thing for lion or buff.
+rjonzen34 Being a rimmed cartridge, it probably wouldn't feed well from that magazine. But maybe that's one reason why the U.S. military rejected it. My first thought was .416 Rigby. But I think in those days Rigby wouldn't license anyone to chamber rifles for that cartridge, and there was only 1 ammo manufacturer that made .416 Rigby.
Would this design have been able to satisfy the German requirements that begat the G41s? With a few mods I mean. After all, it's a Bang system gun with literally no moving parts on top and it's fairly easy to operate like a straight-pull bolt-action (okay, not Mauser style, but surely easier to operate). Cut a feeding port on top with a stripper clip guide and you should be all set.
Is it possible that this rifle influenced Walther's Gewehr 41 design? I know that it used a Bang system as well, and the muzzle cups look pretty much identical to me. At least from photos.
+Microzombie If you don't want to drill gas ports into the barrel, the Bang System is basically the only way to create a gas-operated self-loading rifle. Deducing an influence from that alone is a bit thin, especially as the G41(w) has a distinctively different operating mechanism aside from the Bang System...
+Mirdarion I was simply asking since I'd never seen a Bang system before the G41. Since Walther's design beat out Mauser's I was curious. I guess the question should have been. "Did Walther's experience with Bang systems help them beat Mauser." As for the systems being different, they couldn't have been very different considering that the basic Bang system relies on the operating rod moving the bolt. I may be wrong because I've never seen a disassembled G41(W). Please correct me if I am.
Microzombie Well, on that basis every self-loading rifle that isn't recoil operated uses the same technology. But in weapons technology there is more differentiation (how much the bolt actually move (short or long stroke system), whether or not the bolt rotates, and much more. The MG 42 for example also uses a Bang System to support the actually recoil operated, roller locked mechanism (the whole barrel moves backwards a little bit to push on the bolt and give it the necessary momentum to overcome the spring pressure after the unlocked rolls slowed it down before, so that it doesn't move backwards with the gas pressure in the chamber still being too high). It should be noted that the G41 didn't really win anything, as it wasn't adopted. Development continued and in the end the Waffenamt realised that the Bang System was bollocks and abandoned it...
I would call it the German Rheinmetall company, because of the military limitations of the Versailles treaty after WW1 they used loopholes in Germany to work on guns, hence using a third party country to work in since it technically did not violate the limitations of the treaty. Not unlike tax loopholes in these days. :D Also St.m.G. probably means "Stahlmantelgeschoss", aka full metal (steel) jacket.
+Udo Willkomm You may want to get your history book ready, there was that little detail called "Treaty of Versailles" that restricted weapons development and production for the military in Germany between WWI and WWII...
When magazines are so small it makes me wonder why bother with them and especially with the additional expense and complications of an automatic action.
![ผัวเถื่อน - ยูริ โตเกียวมิวสิค [ OFFICIAL MUSIC VIDEO ]](http://i.ytimg.com/vi/P08ORRVDGl8/mqdefault.jpg)
Gorgeous rifle with unique fuctions, features, and rarity. I hope if finds a good home. Only issue is having to go to a gunsmith to figure out the ammo.
This is one of my favorite of the toggle locks I've seen on Forgotten Weapons. Not to mention the finnish and the stocks grain.
love toggles! More Toggles!
Thanks Ian
Man, if only I could find full photos of this thing. One of the most beautiful mechanisms I have ever seen on a semi-auto rifle.
So many toggle action guns on this months, really like this mechanical joints.
Is your profile pic who I think it is?
It's our Lord and Saviour, Ian!
vk.com/alexanderrudel?z=photo262972361_412560657%2Falbum262972361_00%2Frev
+GunJesus xD
+GunJesus Lmao the fact that its a pederson rifle he's holding is amazing. Ian really has a hard on for all pedersons haha!
I
That rifle has really sexy lines, what a neat operating system.
Beautiful rifle, and nifty action.
I love the toggle lock action, its very unique and interesting
before i started watching your video's I thought for a semi-auto rifle you either had "direct impingement," some sort of piston, or roller-delay type action. You've really opened my eyes, thanks Ian!
This rifle is realy cool and unique.
I'd love to see some high speed footage of this action
Satisfying action on that rifle. Just neat to see it. TY!
Zee Chermans never cease to amaze me. Very cool concept, and quite fitting that Walther manufactured it.
This is probably the best collectible sporting rifle I have ever seen form the era. And I don't say that lightly.
I love the simplicity of the action overall. It's certainly elegant in its own regard.
its a very interesting rifle,with a magnificent design
Wow, I really like it. I wonder if anyone makes modern actions like this.
That muzzle "brake" action is very unique.
That is one beautiful rifle, and I love how it's action works and looks. Very aesthetically pleasing. And idea on what gives the bolt that purplish color?
case hardened i believe. you can get steel to be an amazing blue colour if you get the temp just right.. check out a channel called ClickSpring he shows you how
Having a semi-auto rifle seems a bit pointless if it only has a 3-round magazine, but I guess they wanted it to sit flush. I imagine the military trials version would have had a much larger magazine.
Yea like 8 or 10
Perhaps one of the factors in these guns not becoming widely manufactured was the fact that they developed most of them around the time of the Great Depression(1929-1939).The Great Depression is often seen as an American economic disaster but it really effected the whole world.Especially industrial countries that relied heavily on exportation.
What a gorgeous piece of machinery.
toggle orgasm right now, this rifle is insane! The operating principle is not that complex, yet the designer still managed to make it very complicated and interesting
This is the coolest rifle I've ever seen.
Ian sure does love his toggle lock rifles
That is about the coolest looking action I have ever seen ! Thanks !
What a beautiful gun!
Ian, do you know why toggle-locked arms never caught on, beyond the Luger? They seem to me an excellent way to build a gun.
A two-year late response which isn't from Ian:
Cost. Toggle locked arms are expensive and need much more precise machining.
thats really neat. never seen anything like that. very good looking rifle
Gorgeous rifle, Walther do make some pretty stuff. Would love to see a good nosey around a WA2000 at some point.
Beautiful rifle, and nifty action.
Could it possibly be chambered in 10.3x60R Swiss?
+wood1155 From what I know / can find. The cartridge is almost identical in size and performance to 450/400 23/8" The bullet weight can range anywhere from 180 - 400 grains but 185-250 is most common. it has a bore size of about 10.3mm but the grove size is closer to 10.7 (so near .400").
Although the cartridge has all but been obsolete for a century, it is still in use in a few isolated areas the foremost being the Swiss canton of Grisons where it is the mandatory calibre for all hunting - hence it is still chambered by european companies such as Blaser and ammunition offered by the likes of RWS(185 Gr expanding cone point @ 2935 fps)
possibly a 9x57 mauser or 9.3x57. those had bullet weights near the proofing, and were sporting cartridges
Seems like a much more sensible blow-forward gun compared to the other ratcheting Rube Goldberg contraptions.
I would even say it's elegant! Since it's a toggle-lock, the actuating motion to break the knee can be of any direction as long as there's a perpendicular force acting on it.
That looks fun to operate left-handed.
that is just a lovely mechanism.
As usual video is of great quality, thank you !
I love the mechanics of these older semiautomatic firearms, mainly pistols. But when a rifle has something unusual or unique im all in! I'd own this rifle if I had the money lol
Walther guns are just elegant, plain and simple.
that is such a beautiful gun
I love that the toggle lock is on the side
Interesting design of the rifle
Rock Island must love Ian's "free" marketing. I wonder if it effects the final auction price having something like 50k views on this page.
Having an op-rod that pulls in tension instead of pushing in compression seems a good deal smarter, all other considerations of operation aside. Have there ever been gas piston arms with enclosed pistons that stroke forward instead of back? I'd imagine fouling of the muzzle device to be the major liability here, or at least a real concern.
Teutonic engineer in me = Geeked. Big Bore Lover in me = Geeked. Old world craftsmanship,styling in a futuristic (back then) design. Would love to have a rifle like that.
Cool rifle and thanks Ian.
It's a shame there aren't many rifles like this left.
My best guess would be a 10.3x57 Mauser. Second guess would be a 10.75x57 Mauser, but that is less likely as a nominal 350 gr bullet was used.
A chamber cast would be required to be certain, but I suspect that isn't going to happen.
The toggle action caught me off guard. I thought this was gonna be like a G41 at first.
Nifty mechanism
this is probably the sexiest rifle i have seen for a long time.
Damn that's one smart mechanism
This rifle is fucking beautiful.
Wow this is the only video I can find on this rifle. At least on yt
ian you've probably heard this a lot, but a stoner 63 video(preferably a long one) would be amazing.
More of this neat toggle guns!
Holy smokes! As a left handed shooter, that bolt would be an eye opener... Or, in the worst case, and eye closer, lol!
reminds me of a Browning lever action (that could be adapted to this type of toggle action, but with an internal toggle that forbids a lefty shooter).
will we ever see a flame thrower on the show?
+Sam Guglin Funny you should ask; I just spent yesterday filming some flamethrower shooting.
+AlexanderSuperTramp WILL I EVER GET A PONY???
+mallory1970 I sense a trade pending.
+AlexanderSuperTramp As I am not a member of 19th Century European aristocracy, the pony shall remain safe.
+Sam Guglin
send in some ghost peppers
Except for the back end of the action, it’s a very attractive rifle.
Ian looks busy..... so many reviews on so many weapons.... well least no fair use notification problems, many other youtubers have still problems with that and youtube seems lost on the subject. XD keep it up !
This action is so cool!
Kind of a gas trap Grand Luger hybrid. Very cool but looks like recoil impulse would be funny feeling toggling to the side but who knows.
This one is very interesting indeed.
what a wonderful rifle. realy cool. i tought p08 too-
There must be some way to gauge the chamber to determine the proper cartridge dimensions!
Great video as always, Iove learning about these unique guns.:D
Ian,
That mechanism kind of looks like the Japanese Trials Gas-Operated Pedersen Rifle that you did a video on earlier this month. Both are toggle locked with the "op rod" going forward. Do you think there was any relationship?
+The Laughing Hyenas
I was thinking that myself. I doubt there is any relationship, just a similar solution to a common problem.
ChristophInns ,
I am wondering. If I were a Japanese project manager and I had to design a rifle one of the first things I would do is get every advertisement for any existing rifle of similar specifications. Did the guy get catalogs?
SO cool!
Hi Ian, first of all thanks for the interesting clip & sharing this nice rifle with us
One question came up: i never knew of a Swiss Rheinmetall company. From all that i know Rheinmetall is a german manufacturer, and always has been (located in Duesseldorf with their first production site in 1889) I heared they have bought Solothurn AG (swiss manufacturer) after world war one, or at least sharings of the company - so they would be able to get around the versailles treaty and continue development of small arms at that time. Karl Heinemann was a german engineer for Rheinmetall. Do you have more details about any swiss involvement in this rifle? Keep up the good work :)
+ranji kawanji Here's a good overview: www.smallarmsreview.com/display.article.cfm?idarticles=1973
+Forgotten Weapons thank´s a real lot for the link - seems to confirm my information :)
That page explains indeed pretty detailed how german Rheinmetall company used Solothurn in switzerland for their plans to develop weapons like self-loaders and machineguns. Interesting to figure out how busy german arms development was in secrecy after ww1, still during the "Weimarer Republik". Some interesting history aspects there behind this gun - similar to the mg34.
hi, as far as i know, rheinmetall is a german company, wich, in order to work around the versailles treaty, bought a swiss arms manufactur company called Solothrunes AG. i dont know if thats related to this gun, but i never heard about a swiss rheinmetall.
+Werner Heisenberg Rheinmetall-Borsig openly used the capacities of the Waffenfabrik Soluthurn to produce weapons they couldn't develop and manufacture in Germany. These were mostly export weapons, but some weapons production was done directly under the Rheinmetall-Borsig label and relatively openly so, in spite of the violation of the treaty.
Camera angle is alittle high... Love your videos.
St.m.G stands for "Stahlmantelgeschoss", which is indeed the German word for "full metal jacket".
Steel jacketed bullet would be a better translation.
Because regular Full metal jacket bullets have copper jackets
Ian, please do a show of a European sporter rifle with double-set triggers or point me to a previous video. I feel that setting trigger systems just don't get enough attention as they are very wonderful as aids of accuracy. Your vids are auto-liked without regret every time! : )
Quick question Ian. Do you find buyers using your videos to inform their bids? Or are they more knowledgeable about the weapons than even yourself?
one cool gun. i wonder what happened to the project, most of the sporting rifles are 2-stroke manual operating.
"It's a little less expensive"
Estimated price: $35,000 to $60,000
Yeah, I'll jump right on that.
Really cool video and firearm though, it looks like a slick system for an early semi-auto rifle.
I just love togle lock guns
It sounds almost as if there are two different microphones picking up sound in this recording. Anyone else notice that?
That is so cool.
I wonder if residual gas pressure in the barrel is meant to play a role in cycling the action after the toggle knee is bent.
That seems like it would be a super-reliable mechanism. Any thoughts on why it wasn't more successful?
+KarlBunker
too expensive to make maybe? *shrug*
+KarlBunker Well for one, the "Bang" gas system is not a very good gas system, designers would try it later on the Gewehr 41 and M1 Garand and found how quickly fouled it got. Not super-reliable at all.
Not a lot of cartridges in that diameter. Fewer were commonly jacketed. 10.75X57 Mannlicher is all I can find, so probably a likely candidate?
how does a horizontal toggle mechanism affect lateral accuracy? imagine youd get a hell of a sideways kick - much more difficult to compensate for than a vertical one
impractical as it may be, itd be really cool to see a symmetrical version of this - toggles flap out on both left and right sides simultaneously
+IosueCanadensis Because the operating process starts at the end of the barrel, I suspect that by the time it initiates the overwhelming force applied on recoil is directly along the axis like a bolt gun. By the time you start responding to the kick that's all you'll mainly feel and any sideways torque would be minimal.
Hmmmm, a gas operated gun not susceptible to carrier tilt. I like it.
Bet that would be scary as hell to shoot for us leftyys Ian
I realize the design was not overly successful, but that is a beautiful action @.@
5:03 now I can use what I learned in mechanics at University
Rheinmetall is a german company located in Düsseldorf, Nordrhein-Westfalen. They are manufacturing the cannon-barrel of the german "Leopard-2" Tank. Definitely not a swiss company ;)
Yes, but they have production in several countries including Switzerland, so this is made in Switzerland by a German based company with production ther. Kinda like Apple is a US company with production in China.:)
+TheDeathlord21 The Treaty of Versailles prohibited the development and production of military self-loading rifles in Germany at the time. The weapon was made in Switzerland (which is exactly what Ian said) to circumvent that little detail.
The toggle cover is an interesting idea, and the toggle unlocker is much simpler than a Pedersen's. Wouldn't this kind of system be very sensitive to dirt or mud in the front of the rifle though?
Yes
Have you ever reviewed a Browning Recoiless? Relatively modern (~20 years ago) design but flawed and obsolete now. would love to see you review one.
It looks like you're showing the rifle you shot those two deer with.
Mud test when? :^) Just kidding this rifle is probably worth more than my house.
I reckon it was conceived to be a boar or deer rifle. Pretty hefty round, a few follow ups in the mag. Seems plausible.
I would have guessed a 40 caliber rifle in the 30’s would have ment one thing, Afrika. Depending on the powder charge it may have been just the thing for lion or buff.
Very beaytiful gun !!!!!
Tang! Also I'm thinking maybe a 10.4x38mmR cartridge, they had it produced around those times.
+rjonzen34 Being a rimmed cartridge, it probably wouldn't feed well from that magazine. But maybe that's one reason why the U.S. military rejected it.
My first thought was .416 Rigby. But I think in those days Rigby wouldn't license anyone to chamber rifles for that cartridge, and there was only 1 ammo manufacturer that made .416 Rigby.
+A Endsley true, didn't pay to close of attention to the mag.
Would this design have been able to satisfy the German requirements that begat the G41s? With a few mods I mean. After all, it's a Bang system gun with literally no moving parts on top and it's fairly easy to operate like a straight-pull bolt-action (okay, not Mauser style, but surely easier to operate). Cut a feeding port on top with a stripper clip guide and you should be all set.
the quality is nice. i guess this bleed over to there airguns as they produce some high end very accurate air guns..
Is it possible that this rifle influenced Walther's Gewehr 41 design? I know that it used a Bang system as well, and the muzzle cups look pretty much identical to me. At least from photos.
+Microzombie If you don't want to drill gas ports into the barrel, the Bang System is basically the only way to create a gas-operated self-loading rifle. Deducing an influence from that alone is a bit thin, especially as the G41(w) has a distinctively different operating mechanism aside from the Bang System...
+Mirdarion I was simply asking since I'd never seen a Bang system before the G41. Since Walther's design beat out Mauser's I was curious. I guess the question should have been.
"Did Walther's experience with Bang systems help them beat Mauser."
As for the systems being different, they couldn't have been very different considering that the basic Bang system relies on the operating rod moving the bolt. I may be wrong because I've never seen a disassembled G41(W). Please correct me if I am.
Microzombie Well, on that basis every self-loading rifle that isn't recoil operated uses the same technology.
But in weapons technology there is more differentiation (how much the bolt actually move (short or long stroke system), whether or not the bolt rotates, and much more. The MG 42 for example also uses a Bang System to support the actually recoil operated, roller locked mechanism (the whole barrel moves backwards a little bit to push on the bolt and give it the necessary momentum to overcome the spring pressure after the unlocked rolls slowed it down before, so that it doesn't move backwards with the gas pressure in the chamber still being too high).
It should be noted that the G41 didn't really win anything, as it wasn't adopted. Development continued and in the end the Waffenamt realised that the Bang System was bollocks and abandoned it...
I would call it the German Rheinmetall company, because of the military limitations of the Versailles treaty after WW1 they used loopholes in Germany to work on guns, hence using a third party country to work in since it technically did not violate the limitations of the treaty. Not unlike tax loopholes in these days. :D Also St.m.G. probably means "Stahlmantelgeschoss", aka full metal (steel) jacket.
Rheinmetall is basically a German company. Top location is Düsseldorf. Maybe, they had in the ´20s a location in Switzerland.
+Udo Willkomm You may want to get your history book ready, there was that little detail called "Treaty of Versailles" that restricted weapons development and production for the military in Germany between WWI and WWII...
Interesting design, but being left handed, I'd worry that toggle would hit me in the face.
When magazines are so small it makes me wonder why bother with them and especially with the additional expense and complications of an automatic action.
+MrMonkeybat It's small so it stream lines with the gun. Since it's detachable, you can make bigger ones if you want.