I have never considered this possibility so I just checked all the rifles I have built and needed to invest 25 cents in the most recent which also uses the A5 buffer system. It appears that I have been fortunate.Thanks for sharing yet another invaluable tip.
This is awesome, I am glad I stumbled upon this tip. I am on my 3rd build and never knew to check this spacing. I got lucky I guess on the first 2 (just checked spacing to confirm, though they had already been fired a bunch and they are GTG), but the 3rd and incomplete one I'm currently working on, needed a quarter. Caught it before it became an issue.
Appreciate this. This was incredibly helpful since I saw your other video mentioning this potential issue, and didn't know how to fix it when I checked my new build. Glad it only cost me a quarter. Also, that Maryland accent makes me homesick sometimes. Thanks Chad.
Thank you for sharing the tip, it might work for me since I have a problem with releasing the bolt and not lock in position. I tested it with 2 quarters and found that mine is not as thick as it is supposed to be, and I dropped in a quarter and it seems to work. I have to go to the range tomorrow to actually test it out but I have a strong feeling that this might be the case!
This quarter trick has already saved my derriere at least once haha. Unfortunately I have some very light marks on my lower where the bolt carrier kissed it a couple times. But I was able to catch it way early and get it resolved, thanks Chad!
Defacing currency is only illegal if you were attempting to pass it off as currency. drilling a hole in a quarter is not illegal in any way. Example would be the penny machines that turn a penny into a souvenirs found in amusement parks, museums roadside rest areas. The penny is destroyed .
Wow - this test would be vital for a KE Arms polymer lower with integral extension and stock. It’s one thing to whack the tail of an aluminum receiver…
I noticed that I have too small of a gap on 2 of my 3 rifles. Two rifles have a PWS buffer extension and Geissele Super 42 Spring. The other rifle Aero Precision Extension amd Spring. The PWS/Super 42 combo needed shims. One took a quarter and the other needed 2 quarters. I need to take the Aero spring and put in the PWS or visa versa to see if it is the ectension or the Spring...right now I think it is the spring. Have you seen this before?
Is there a way to help over gassed system on a pistol with a Pdw stock, without a adjustable gas block? Buffer only has room for 1 weight so 1 tungsten is as heavy as I can go. I really don't want to remove a gas block that is factory installed. Any tricks you know about?
According to another comment, yes. DOE Security would apparently do this with their 9mm Colt SMGs, preventing premature wear and breakage of the bolt catch.
EVEN MORE SO! There are so many different buffer systems out there, and the 9mm bolt only needs to cycle a short distance. Many competition shooters actually intentionally shim the system out to override the bolt hold open to get the shortest and fasted cycling out of the gun possible.
Yes, according to another comment, apparently this used to be done on the Colt SMG (as issued by the Department Of Energy), and would make the gun stop wearing out and breaking bolt catches.
Yes. If the gap between the bolt catch and the bolt face when fully compressed is too short, it will stop the gun from locking open. You need 'just enough' to prevent the BCG from hitting. More isn't better.
Just did this last week with two receiver extensions. Working on a new lower this evening... I didn’t need to ADD anything, but I can fit three quarters and almost a dime between the gap on this one. Is there a guide for the point of “too much” gap?
so the problem I am having is I bought an armaspec gen 4 buffer system with an h3 buffer. Its been in a pistol build I had and worked fine. But I recently built a competition ar though, and decided to move the armaspec recoil system over to it AND to use their h1 buffer instead of their h3 buffer. Their h1 buffer has a rubber pad on the end of it where as the h3 did not. I know there is supposed to be tension from the carrier to the buffer when using the armaspec system. I still have the same amount of tension with the h1 as I did with the h3, the problem now is that when I go to charge the gun, the bolt wont come back far enough to catch a round to feed into the chamber. I have tried diff mags and ammo, so I am REALLY beginning to think its the new h1 buffer I have put on the armaspec somehow causing the issue. I thought of unscrewing the buffer tube one more turn counter clockwise to back some of this tension off, but I am afraid when I do, I wont have enough intended tension on the carrier that armaspec intended for it to have. Am really racking my brain here, should have just went with a geiselle super 42 I guess, but really wanted to use the armaspec buffer system since its a competition build and im trying to make it run as smooth as i can. Sorry for long post. Thx tons man, hope u see this comment soon, or someone does. Thx guys
No gauges, just quarters, I like this type of info. Most of us don’t have those types of gauges. I didn’t even know there was a gauge for the back of the gas key. Thanks for the info. Time to take apart my ARs after watch one of your videos again.
Can you further elaborate what would compress so much as to cause the "less than two quarters" space to be compressed so compressed that it would hit there, if it doesn't compress when you push it in my hand in a firm manner. I guess one could tell if it started to happen. Thanks for your vids.
High-pressure ammo would have no issue driving that buffer back hard enough to squish the plastic end piece intended to absorb shock from the buffer hitting the end of the receiver extension.
@@EnPeeSee Thanks for the reply. Do you suppose that regular 556 would do that, or only something "high-pressure"? Not sure I have heard of "high-pressure" 556, but I guess it could exist.
Thanks for this Chad! Just checked mine and found that it was a little tight. Put a quarter in the end and now it passes the two quarter test! Thanks for this great info!
I feel like if the spacing was more than 2-3 quarters you should revisit the parts you've purchased / used together? I mean... that seems excessive much less EIGHT of them!!!
![ไข้ขึ้นเลย! เมื่อแฝดโดนจัดเต็มวัคซีนครบ2เดือน🤒 [cc] แดนแพทตี้ SS2 | EP.54 |](http://i.ytimg.com/vi/z2VHItnyyvY/mqdefault.jpg)
Watching this video four years after it was uploaded. I learn something from every single video. Thank you so much!
good info, thank you
I have never considered this possibility so I just checked all the rifles I have built and needed to invest 25 cents in the most recent which also uses the A5 buffer system. It appears that I have been fortunate.Thanks for sharing yet another invaluable tip.
Consider drilling a drain hole in your new 'buffer tube spacer', also.
@@0neDoomedSpaceMarine Will do, thanks
🤔 Now I have to check mine! Gonna bug me until I do. Thanks for the video!
This is awesome, I am glad I stumbled upon this tip. I am on my 3rd build and never knew to check this spacing. I got lucky I guess on the first 2 (just checked spacing to confirm, though they had already been fired a bunch and they are GTG), but the 3rd and incomplete one I'm currently working on, needed a quarter. Caught it before it became an issue.
Appreciate this. This was incredibly helpful since I saw your other video mentioning this potential issue, and didn't know how to fix it when I checked my new build. Glad it only cost me a quarter. Also, that Maryland accent makes me homesick sometimes. Thanks Chad.
Thank you for sharing your knowledge. I watched a lot of your material here.
Thank you for sharing the tip, it might work for me since I have a problem with releasing the bolt and not lock in position. I tested it with 2 quarters and found that mine is not as thick as it is supposed to be, and I dropped in a quarter and it seems to work. I have to go to the range tomorrow to actually test it out but I have a strong feeling that this might be the case!
I’ve built 9 AR’s of various calibers and configurations , all run great 🙏🏻, stumbled on your channel , AWSOME content , your never too old to learn !
Great video, thank you for producing and posting!
Thanks for the corrective tip. I've got a couple of buffer tubes that I can use now.
This is the best channel on TH-cam! I just got my Midwest industries URR and my borescope in the mail!
now you got me checking all my guns. My pws mk111 and my m&p 15 sport had about a single quarter wide gap.
This quarter trick has already saved my derriere at least once haha. Unfortunately I have some very light marks on my lower where the bolt carrier kissed it a couple times. But I was able to catch it way early and get it resolved, thanks Chad!
Thank you soooo much!
Great tip. Thank you.
This tip was money. I appreciate your ¢0.25.
Defacing currency is only illegal if you were attempting to pass it off as currency. drilling a hole in a quarter is not illegal in any way. Example would be the penny machines that turn a penny into a souvenirs found in amusement parks, museums roadside rest areas. The penny is destroyed .
Wow - this test would be vital for a KE Arms polymer lower with integral extension and stock. It’s one thing to whack the tail of an aluminum receiver…
I’m here from Donna’s link in the Facebook group 👍🏻
Awesome information.
Although heavy, I wonder if enough quarters would suffice to use a carbine upper/spring/buffer on an A2 stock?
Would adding quarters cause damage to the inside of the buffer tube though from buffer weight smacking into them?
Great video
Hello, This also apply for ar15 pistol?, I believe so but better safe than sorry!
How many quarters thick is the no-go side?
Or just how many thou, since I do have calipers lol
So you fix the problem AND increase the value of the gun!
I noticed that I have too small of a gap on 2 of my 3 rifles. Two rifles have a PWS buffer extension and Geissele Super 42 Spring. The other rifle Aero Precision Extension amd Spring. The PWS/Super 42 combo needed shims. One took a quarter and the other needed 2 quarters. I need to take the Aero spring and put in the PWS or visa versa to see if it is the ectension or the Spring...right now I think it is the spring. Have you seen this before?
Use metal box knockouts. They're the same size, lighter, and cheaper.
Is there a way to help over gassed system on a pistol with a Pdw stock, without a adjustable gas block? Buffer only has room for 1 weight so 1 tungsten is as heavy as I can go.
I really don't want to remove a gas block that is factory installed. Any tricks you know about?
Black river tactical ez tune gas tube
Do you do the same method for a 9mm pcc?
According to another comment, yes. DOE Security would apparently do this with their 9mm Colt SMGs, preventing premature wear and breakage of the bolt catch.
Very educational.
My 9mm bcg requires $1.25 and 2 Evian water bottle caps with the threads removed. Keeping it classy.
Quick question, does this apply to full length ar rifle tubes as well?
Don't see why not.
Is that also relevant for the 9mm pcc?
EVEN MORE SO! There are so many different buffer systems out there, and the 9mm bolt only needs to cycle a short distance. Many competition shooters actually intentionally shim the system out to override the bolt hold open to get the shortest and fasted cycling out of the gun possible.
Yes, according to another comment, apparently this used to be done on the Colt SMG (as issued by the Department Of Energy), and would make the gun stop wearing out and breaking bolt catches.
What prevents the quarter from going sideways?
The spring
Does this 2 quarters gap test still apply if I am using a JP silent capture spring??
It should apply regardless of the buffer system. They all have some sort of rubber shock system on the back that can compress.
Did anyone else superglue a couple quarters together to make this gauge and/or drill out a quarter to insert into the receiver extension?
If the gap were too small would it affect the bolt holding open on last round?
Yes. If the gap between the bolt catch and the bolt face when fully compressed is too short, it will stop the gun from locking open. You need 'just enough' to prevent the BCG from hitting. More isn't better.
@@seanmtactical6069 thanks!
I cannot afford this test
2 Quarters are 2x1.75mm = 3.5mm
(2x0.069'') = (0.138'')
Finally, someone who knows how to post an actual measurement...
Just did this last week with two receiver extensions. Working on a new lower this evening... I didn’t need to ADD anything, but I can fit three quarters and almost a dime between the gap on this one. Is there a guide for the point of “too much” gap?
Take a turn out of the buffer tube.
> .136"
drill a hole in quarter to let air out back better yet uae a washee
If my gas tube is all the way to one side entering the upper receiver gas tube hole, does that mean my gas key on BCG won't line up properly?
Sub!!
If only one quarter will fit and the gun runs fine with no marks ....would you still recommend adding quarter in the tube?
Great video 👏
so the problem I am having is I bought an armaspec gen 4 buffer system with an h3 buffer. Its been in a pistol build I had and worked fine. But I recently built a competition ar though, and decided to move the armaspec recoil system over to it AND to use their h1 buffer instead of their h3 buffer. Their h1 buffer has a rubber pad on the end of it where as the h3 did not. I know there is supposed to be tension from the carrier to the buffer when using the armaspec system. I still have the same amount of tension with the h1 as I did with the h3, the problem now is that when I go to charge the gun, the bolt wont come back far enough to catch a round to feed into the chamber. I have tried diff mags and ammo, so I am REALLY beginning to think its the new h1 buffer I have put on the armaspec somehow causing the issue. I thought of unscrewing the buffer tube one more turn counter clockwise to back some of this tension off, but I am afraid when I do, I wont have enough intended tension on the carrier that armaspec intended for it to have. Am really racking my brain here, should have just went with a geiselle super 42 I guess, but really wanted to use the armaspec buffer system since its a competition build and im trying to make it run as smooth as i can. Sorry for long post. Thx tons man, hope u see this comment soon, or someone does. Thx guys
No gauges, just quarters, I like this type of info. Most of us don’t have those types of gauges. I didn’t even know there was a gauge for the back of the gas key. Thanks for the info. Time to take apart my ARs after watch one of your videos again.
Lots of people get mad about my gauging methods. What they fail to understand, is that I teach alternatives to gauging in my courses.
Now watch California, Illinois and New York try to make quarters illegal.
@SchooloftheAmericanRifle thank you for this video. I don't use a buffer retaining pin with my armaspec srs and this helped me with the spacing.
.
That quarter trick is pure genius!!!
Wish I knew half of what you've probably forgotten about ARs!!!
Another nugget!
I've gotta check that
I know...right? This guy HAS measurements..FOR MEASUREMENTS
Drill a hole in one of the stock position holes for ventilation.
Ya man. Or even three or four of them.
Wonder if the 3/4 knockout from a metal electrical gang box would work. You can drill a hole in that
Roughly the same size , I don’t see why not 👍
If the gap were larger, wouldn't both the go and no go fit into it? I'm probably missing something.
Wow I was completely unaware that this could be a problem
Is it possible to just get a longer buffer pad? I suppose not or that would be the fix lol.
Nice tip
Can you further elaborate what would compress so much as to cause the "less than two quarters" space to be compressed so compressed that it would hit there, if it doesn't compress when you push it in my hand in a firm manner. I guess one could tell if it started to happen. Thanks for your vids.
High-pressure ammo would have no issue driving that buffer back hard enough to squish the plastic end piece intended to absorb shock from the buffer hitting the end of the receiver extension.
Also if the bolt carrier it's too short, if I'm not mistaken
@@EnPeeSee Thanks for the reply. Do you suppose that regular 556 would do that, or only something "high-pressure"? Not sure I have heard of "high-pressure" 556, but I guess it could exist.
@@CoryHobbs2178 That makes sense, but I'm talking having about 2 quarters of space, and that turning into no-space, and then hitting the lower.
Thanks for this Chad! Just checked mine and found that it was a little tight. Put a quarter in the end and now it passes the two quarter test! Thanks for this great info!
Neat trick, now I have to check all of my rifles.
Thanks Chad, another great video!
That's a pretty end plate staking!
Thank you.
Thank you!
Out of curiosity, would taking the buffer tube off and grinding the width of the quarter off the threaded end work for a solution?
Yes. That would work but a file is a better option in my opinion.
Thank you!! Mine took 3 whole quarters. I was so over gassed that my gas key walked out, great tip!!!
I feel like if the spacing was more than 2-3 quarters you should revisit the parts you've purchased / used together? I mean... that seems excessive much less EIGHT of them!!!
TH-cam Gold, once again. Thank you, good sir!
The more you know..
Love your videos man! You sell any stickers with your logo?
They are on his site I believe
I'll have some on my website this week.
Love your vids...now I have more things to check when I get home
Great tip
And it only costs 25 cents !!
That’s bro !!
Great info.
I fuckin love this guy.
How would this work with a folding adapter
same way
Well, assuming the gap is too short, you'd put that quarter in the buffer tube the same way, the spring will hold it in place.