I have a Retro GAU-5A/A and when I took it to the range the first shot was such a rush. for just a moment I was back in AF in 1972.... love the retro's and your videos, Thanks!
We had the standard M4 right up until 2 months before deployment in 2013 to Afghanistan. We turned them all in and got M4A1. They were all by Colt and very accurate. Instantly noticed the difference in weight with the heavier barrel. Awesome video. I served with 1-506th, 4BCT, 101st ABN DIV. Awesome video. CURRAHEE!
Hey Misha good video as usual. I have a Troy GAU-5 and have come to find that not only is it a great collectable rifle but it's a very practical rifle to boot. The compact size, light weight, and rugged sights make for a great truck gun and wear from use only makes it look cooler.
Thanks much for watching. I couldn't agree more. Troy's GAU5 and XM177 line are good for collectors sure, but also just light and handy little KISS type carbines. For real use, the only thing I'd change would be to swap the metal CAR15 stock out for a modern fiberlight CAR15 or even M4. Of course, I'd keep the original metal stock too, using it for pictures and what not. Switching these out would save even more weight, and prevent a ton of wear and tear on a rather hard to replace part also.
This is the best briefing on the history and development of the Colt combat carbines I've ever heard in the Civilian world. You should be on contract with Uncle Sam to instruct his new armorers. Thanks for you time and research and for your love for these older warhorses that are the grandfathers of the weapons our young pups use today.
Mishra thanks so much for taking the time to produce these videos. You do such a great job. I doubt there is anyone that knows so much in depth knowledge of all firearms. Bravo.
Thanks much for taking the time to watch them too. I know most people want a 5-6 minute bitesized vid, but that's just not something I have a ton of fun making....well except for range firing vids of course.
Hey Misha, great video! Correct me if I am wrong, but I was under the impression that Colt did open the gas port diameter on the 605. Standard M16A1 (20" .625) had a gas port diameter of .086 - .093. The standard specification for the 605 was .105 - .110. I would think that if the gas port was left alone, they would not have cycled at all (due to loss of dwell time like you stated in the video). I only know this because I am in the process of building one. Just thought I would ask for clarification. Thanks again for the video!
Thanks for watching. The 605 was at best a prototype, so Colt only made a handful. I am sure they experimented with variations as usual. That said, I do believe at least the first/original 605s literally just had a 20" barrel cut down to 15", and then rethreaded. The DI gas system was very new to them then, so they just didn't know about dwell time and gas port sizes like we do today. You are right that a modern 605 build does call for enlarging the port, no argument there and I did one myself a few years back. But I am not 100% sure one way or the other if the original 1960s 605s had modified gas ports or if they did, if it was original or something done later to try and improove reliability? I do know that model was known for being unreliable, and that was a good part of the reason why Colt went over quickly to the 607, and its shorter gas system.
We love you Misha. You got a fantastic collection of CAR-15s. Especially for a guy who is admittedly more of an AK buff! I wish I had those! For anyone looking for more information on the development of the M16A2 to the M4/M4A1 and everything in between, you should check out Chris Bartocci's book, BLACK RIFLE II: THE M16 INTO THE 21ST CENTURY
The GGU5P was a nice weapon the Army had theirs as well with forward assist or as the Marines would call it the Ranger carbine that was the 723 weapon system under the A2 program some had pencil barrel some had M4 profile barrel I loved seeing these thought they were the thing to have. I can still remember in 89 seeing these with the Green Berets at Ft Bragg at a training exercise as a Marine we got jealous while we had the full size A2 issue.
Another excellent presentation! There was a very short lived “port firing weapon”. It was really bad. It had a pop up front sight and a wire collapsible butt stock. It had a very high rate of fire..
Very informative! I am now a new subscriber. I am trying to research the XM177 for a new retro build and I have bought both Black Rifle Books, so far not a lot of vintage information available at least that I have found. Keep the videos coming VR David W.
My dad got to have to qual on the GUU5P rifle when they were short on M4s 10 years ago. He's since retired and said he loved it over the fancy M4s. I got to deploy with the regular M4 exactly the one Mishaco has, aimpoint and all. If you don't have a hand grip, the Knights rail is a pain. I had to bum off people for rail covers, where a simple classic handguard would have been better. I see why my dad liked the GUU. I also HATE burst, it's weird and awkward.
Mishaco, I have always wanted to build a colt 609 / XM177E1 clone. If I used a 10.5 inch Faxon pencil barrel with a .0.81 gas port diameter and a fake moderator made by Brownells at the end, do you think the gun would function reliably, or would I have to have someone enlarge the gas port a little bit more? Great video as always!
Its a small thing, but the original 609 had a 10" barrel, so if you're going for complete authenticity aim for that length. As to the exact gas port size, I honestly don't know. I'd imagine your ammo would make some difference, as would several other factors. Again, depends how authentic you're wanting too. The 609 never achieved 100% reliability/dependability, hence why the 629 soon replaced it.
Here's the release dates for the 3 major patterns of carbine buttstocks: Aluminum Buttstock: 1967 Fiberlite / Plastic Buttstock: 1984 M4 / Waffle Buttstock: 2002
Great video as usually. Is that any chance, to present for us, canadian family of M-16, M-4 clones by Diemaco/Colt Canada? I assumed that they are expensive & rare in USA, but...?
You didn't mention that there is a rare variation of the M4 called the M4 Enhanced that has a unique 4-way fire control group, including both 3 round burst and full auto. Here's a website with more info on it: robrobinette.com/M16_4-Way_Selector.htm They really should have kept this on succeeding M4s/M4A1s.
Thank you for adding that to the discussion. Colt was doing a 4 way selection as an option as far back as the 1960s. There are so very many little variants and subvariants in this family. Its really enjoyable (to me at least) trying to learn about them all, cheers.
Oh sweet, I didn't know they had them that far back! This could mean there's a chance to get a pre-86 civilian one! I've only seen them on the M4 so I assumed this was an idea that came about in the 90s. I wonder why they never went anywhere, it'd be cool to have both burst and auto.
Well, they did offer them and even sold some to foreign customers, but the US military anted to keep things simple and straight forward. Back in the '60s, they saw little need for burst. They also did a 2 way selector with Safe and Auto for the M16-LMG too.
Its impresses me how Mishaco can read the teleprompter W/O hesitation or tripping over his words. Your President can't seem to put five words together. Sorry, thanks for the lessons.
Cost and the chrome plating wasn't quite up to par, inconsistencies caused it to flake. Chrome is where it matters, phosphate was cost effective, absorbs oil, and offers good protection.
![PASULOL รามเกียรติ์ ตอนที่ 4 นนทกพบรัก [Ramakien Ep.4: Nonthok in love]](http://i.ytimg.com/vi/tMUQgmZzf_A/mqdefault.jpg)
I have a Retro GAU-5A/A and when I took it to the range the first shot was such a rush. for just a moment I was back in AF in 1972.... love the retro's and your videos, Thanks!
We had the standard M4 right up until 2 months before deployment in 2013 to Afghanistan. We turned them all in and got M4A1. They were all by Colt and very accurate. Instantly noticed the difference in weight with the heavier barrel. Awesome video. I served with 1-506th, 4BCT, 101st ABN DIV. Awesome video. CURRAHEE!
Hey Misha good video as usual. I have a Troy GAU-5 and have come to find that not only is it a great collectable rifle but it's a very practical rifle to boot. The compact size, light weight, and rugged sights make for a great truck gun and wear from use only makes it look cooler.
Thanks much for watching. I couldn't agree more. Troy's GAU5 and XM177 line are good for collectors sure, but also just light and handy little KISS type carbines. For real use, the only thing I'd change would be to swap the metal CAR15 stock out for a modern fiberlight CAR15 or even M4. Of course, I'd keep the original metal stock too, using it for pictures and what not. Switching these out would save even more weight, and prevent a ton of wear and tear on a rather hard to replace part also.
there is something about 60's-70's CAR 15s...!
Agreed, they are light and compact, and just so 'KISS.'
This is the best briefing on the history and development of the Colt combat carbines I've ever heard in the Civilian world. You should be on contract with Uncle Sam to instruct his new armorers. Thanks for you time and research and for your love for these older warhorses that are the grandfathers of the weapons our young pups use today.
Awesome breakdown.
You and Chris are Gun Gods! I didn’t felt rushed at all. Thanks!
Excellent video. I really enjoy the early carbines, particularly the 723, and 727.
My favorite retro carbine is the model 654
Agreed, it is a slim & trim little gun. With the exception of the lower, really the Colt SP1 carbine is pretty close to a 654 too.
Mishaco thank you for all the outstanding content
Thank you much for watching it, cheers.
Mishra thanks so much for taking the time to produce these videos. You do such a great job. I doubt there is anyone that knows so much in depth knowledge of all firearms. Bravo.
Thanks much for taking the time to watch them too. I know most people want a 5-6 minute bitesized vid, but that's just not something I have a ton of fun making....well except for range firing vids of course.
Hey Misha, great video! Correct me if I am wrong, but I was under the impression that Colt did open the gas port diameter on the 605. Standard M16A1 (20" .625) had a gas port diameter of .086 - .093. The standard specification for the 605 was .105 - .110. I would think that if the gas port was left alone, they would not have cycled at all (due to loss of dwell time like you stated in the video). I only know this because I am in the process of building one. Just thought I would ask for clarification. Thanks again for the video!
Thanks for watching. The 605 was at best a prototype, so Colt only made a handful. I am sure they experimented with variations as usual. That said, I do believe at least the first/original 605s literally just had a 20" barrel cut down to 15", and then rethreaded. The DI gas system was very new to them then, so they just didn't know about dwell time and gas port sizes like we do today. You are right that a modern 605 build does call for enlarging the port, no argument there and I did one myself a few years back. But I am not 100% sure one way or the other if the original 1960s 605s had modified gas ports or if they did, if it was original or something done later to try and improove reliability? I do know that model was known for being unreliable, and that was a good part of the reason why Colt went over quickly to the 607, and its shorter gas system.
Again, well done! Even with pressed for time issues, under 35 min, well done!
We love you Misha. You got a fantastic collection of CAR-15s. Especially for a guy who is admittedly more of an AK buff!
I wish I had those! For anyone looking for more information on the development of the M16A2 to the M4/M4A1 and everything in between, you should check out Chris Bartocci's book, BLACK RIFLE II: THE M16 INTO THE 21ST CENTURY
The GGU5P was a nice weapon the Army had theirs as well with forward assist or as the Marines would call it the Ranger carbine that was the 723 weapon system under the A2 program some had pencil barrel some had M4 profile barrel I loved seeing these thought they were the thing to have. I can still remember in 89 seeing these with the Green Berets at Ft Bragg at a training exercise as a Marine we got jealous while we had the full size A2 issue.
Another excellent presentation! There was a very short lived “port firing weapon”. It was really bad. It had a pop up front sight and a wire collapsible butt stock. It had a very high rate of fire..
Very informative! I am now a new subscriber. I am trying to research the XM177 for a new retro build and I have bought both Black Rifle Books, so far not a lot of vintage information available at least that I have found. Keep the videos coming VR David W.
Thanks David!
My dad got to have to qual on the GUU5P rifle when they were short on M4s 10 years ago. He's since retired and said he loved it over the fancy M4s.
I got to deploy with the regular M4 exactly the one Mishaco has, aimpoint and all. If you don't have a hand grip, the Knights rail is a pain. I had to bum off people for rail covers, where a simple classic handguard would have been better.
I see why my dad liked the GUU. I also HATE burst, it's weird and awkward.
Your missing the 723 14.5 pencil barrel and 14.5 M203 step down and the 727 these were instrumental in the M4 carbine development.
I never understood the concept of chopping barrel down and then having to add a long moderator so it will function. I think they look cool though lol.
Newest rail for the M4 will be the Geissele mk16 for the block 3 package.
thank you
Mishaco, I have always wanted to build a colt 609 / XM177E1 clone. If I used a 10.5 inch Faxon pencil barrel with a .0.81 gas port diameter and a fake moderator made by Brownells at the end, do you think the gun would function reliably, or would I have to have someone enlarge the gas port a little bit more? Great video as always!
Its a small thing, but the original 609 had a 10" barrel, so if you're going for complete authenticity aim for that length. As to the exact gas port size, I honestly don't know. I'd imagine your ammo would make some difference, as would several other factors. Again, depends how authentic you're wanting too. The 609 never achieved 100% reliability/dependability, hence why the 629 soon replaced it.
Here's the release dates for the 3 major patterns of carbine buttstocks:
Aluminum Buttstock: 1967
Fiberlite / Plastic Buttstock: 1984
M4 / Waffle Buttstock: 2002
Great video as usually. Is that any chance, to present for us, canadian family of M-16, M-4 clones by Diemaco/Colt Canada? I assumed that they are expensive & rare in USA, but...?
Honestly? no, Canadian parts are very difficult to find down here and when found, often pricy.
You didn't mention that there is a rare variation of the M4 called the M4 Enhanced that has a unique 4-way fire control group, including both 3 round burst and full auto. Here's a website with more info on it: robrobinette.com/M16_4-Way_Selector.htm They really should have kept this on succeeding M4s/M4A1s.
Thank you for adding that to the discussion. Colt was doing a 4 way selection as an option as far back as the 1960s. There are so very many little variants and subvariants in this family. Its really enjoyable (to me at least) trying to learn about them all, cheers.
Oh sweet, I didn't know they had them that far back! This could mean there's a chance to get a pre-86 civilian one! I've only seen them on the M4 so I assumed this was an idea that came about in the 90s. I wonder why they never went anywhere, it'd be cool to have both burst and auto.
Well, they did offer them and even sold some to foreign customers, but the US military anted to keep things simple and straight forward. Back in the '60s, they saw little need for burst. They also did a 2 way selector with Safe and Auto for the M16-LMG too.
Ozark Bear Arms I wonder if it's possible to get some back here and into the civilian market.
Troy actually makes the updated GUU5P as well, with the longer barrel
worldoftroy.com/product/guu-5p/
Thank you for watching. When I did this GUU5P, the Troy version was still stuck in limbo. I put an orig Colt barrel on it anyway, so its all good.
I find it funny when people call a lego gun a mutt or a frankengun. It's already a frankengun mutt anyway!
How do you mean exactly?
Do a 6940 series
Its impresses me how Mishaco can read the
teleprompter
W/O hesitation or tripping over his words.
Your President can't seem to put five words together.
Sorry, thanks for the lessons.
moar kitties
What was the main reason Colt switched from a chrome bcg to a phosphate bcg in the 60’s? Was it just because of cost? Great video.
Cost and the chrome plating wasn't quite up to par, inconsistencies caused it to flake. Chrome is where it matters, phosphate was cost effective, absorbs oil, and offers good protection.