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Posted: 12/9/2012 7:28:51 PM EDT
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What weight buffer are most of you running in your suppressed AR's, especialy mid-length carbines.
I'm trying to prevent some of the gas blow back into the upper. In my 20" rifle a Wolff extra power recoil spring seems to help it since I have no buffer options. Thanks, Old Marine 
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Quoted:
What weight buffer are most of you running in your suppressed AR's, especialy mid-length carbines. I'm trying to prevent some of the gas blow back into the upper. In my 20" rifle a Wolff extra power recoil spring seems to help it since I have no buffer options. Thanks, Old Marine Yes you do have buffer options. Buffer Spacer Edit, Your AR is still going to get dirty as heck no matter what buffer you use. Its just a fact of life with an AR. More so with a suppressor. |
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Please educate me on the A5 buffer system. I've heard good things, but I want to know what results and benefits you've had so far. It's an A2 spring, longer tube and longer buffer. Car std 3.0oz Car H 3.8oz Car H2 4.6oz Car H3 5.4oz RRA 9mm 5.6oz A5H1 4.6oz A5H2 5.3oz (Standard A5 Buffer) A5H3 6.0oz A5H4 6.8oz The difference is you get a 5.3-6.0oz buffer that unlike the CAR H3 is likely to run in almost all your uppers on the same lower. The H4 might be only for some uppers, and the H1 is pretty much specialty for say a 14.5 middy with a small gas port while unsuppressed. The A5 allows more weight, more reliability, and more flexibility between different uppers. Every upper I've ever tried from 10.5" to 20" works on my A5 lower with the A5H2 buffer. There is also about ZERO bolt bounce which is impressive because the HK416's 4.7oz buffer has a ton. I contribute most of the improvement to using the A2 spring. That's the best way to think about it, an A2 that collapses. So if you can, try the A2 to see about fixing gassing or reliability or recoil impulse changes, and if you like it, get the A5. |
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Quoted:
Quoted:
What weight buffer are most of you running in your suppressed AR's, especialy mid-length carbines. I'm trying to prevent some of the gas blow back into the upper. In my 20" rifle a Wolff extra power recoil spring seems to help it since I have no buffer options. Thanks, Old Marine Yes you do have buffer options. Buffer Spacer Edit, Your AR is still going to get dirty as heck no matter what buffer you use. Its just a fact of life with an AR. More so with a suppressor. A plug, why didn't I think of that. I know AR's get dirty, I've fired quite a few rounds over the past 30yrs.(I hate blanks and BFA's). I was looking for ways to prevent over gassing (hard recoil impulse) and maybe keep it a little ckeaner. We use Tungsten weights at work for balancing, I've considered buying a machinist lunch to get some buffer weights made. Old Marine
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Why not just buy a buffer? They come with tungsten weights.
The reality of a gas powered (piston or expanding gas chamber) weapons is that if you have more gas, you need either a variable system or it won't perform optimally with and without the suppressor. It's just a fact of life. You can band-aid it all you want, but an adjustable gas system is the only way to correctly handle the problem for optimal function. |
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Quoted:
The reality of a gas powered (piston or expanding gas chamber) weapons is that if you have more gas, you need either a variable system or it won't perform optimally with and without the suppressor. It's just a fact of life. You can band-aid it all you want, but an adjustable gas system is the only way to correctly handle the problem for optimal function. So that leads me to ask what is the best adjustable system. I'm really new to this so open to all suggestions. Noveske does the switch block and the other one i saw was the LaRue SPT (Port Select). are there any others and can anyone offer me some advice on the 2 above? iI have 3 uppers i want to use wiht the suppressors and they are 16" 11.5" and a 7". Are some kinds of gas systems better with different length barrels? Thanks Dave |
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Quoted:
Why not just buy a buffer? They come with tungsten weights. The reality of a gas powered (piston or expanding gas chamber) weapons is that if you have more gas, you need either a variable system or it won't perform optimally with and without the suppressor. It's just a fact of life. You can band-aid it all you want, but an adjustable gas system is the only way to correctly handle the problem for optimal function. That's true. However, I've found that for guns with proper sized gas ports (dd, BCM, colt, etc instead of bushmaster, DPMS, RRA, etc who are all overgassed to begin with) that just adding a bandaid really fixes the issues with adding a suppressor enough for most people. Adding an A5 buffer and maybe the LMT enhanced carrier (but not the bolt) is a whole lot easier than getting a switchblock and finding or modifying a rail for it. I agree non-adjustable options are bandaids, but it might be enough for an acceptable fix without adding a lot more cost or complexity. That said, I'd run the A5 system even if I was using a seitchblock, it's a bandaid for suppressed guns but still a good improvement for almost all ARs I've found. Just adding a buffer with tungsten weights or getting up to the same weight as an A5 won't be the same thing. It's getting the rifle spring and along with the extra weight to keep the dwell time a little longer and cyclic rate down. The OP if looking at adjustable regulators might want to consider the MircoMOA as it fits like the LaRue under rails. If it were me though, since he's looking at 11.5 and 7.5 (sell that crap), I'd do the A5 first with as heavy a buffer that will run in both guns (A5H3?) and then look at the gas block only if it still needs it. I'd focus on the 11.5". |
| Thanks for the info on the Micromoa. thats is a nice looking product and now i have 3 choices in the mix. Here is the website if anyone else is interested. MOA gas block |
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Get both! The VLTOR A5 is a great improvement on every AR I have tried it on. I won't build a gun without it anymore, and eventually will add it to all of my ARs. I used the Innovative Arms adjustable receiver on my 10.5 SBR and it makes a huge difference in felt recoil and gas in the face in the suppressed setting. Combined with the A5 it shoots great!  |
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