Buffer weight.

[vicious_cb]

Sometimes people tend put to much emphasis on gas port size. It’s important, yes. But there is no fix all magic number either, there’s a range that is known to work. The gas port is only one of three components in the recoil cycle. It’s not always feasible to be able to pin your gas port, know what to do with that measurement and then do something about it. Be it drilling to a new size, welding and drilling to a smaller size or barrel replacement. Where as a buffer and spring, are simply drop in parts. And “most” of the time, can be dialed in well. We’ve found that 4oz buffer was the optimal weight for the LARB recoil buffer. We exclusively use Sprinco springs and prefer a slightly stiffer than “mil spec” spring. I personally prefer a slightly stiffer spring for going back into battery and stripping rounds from the mag. Basically the stiffest spring that will give you a good ejection pattern. And I prefer to stay around 4oz...

Actually there is an ideal for the size of gas port given your barrel, ammo and suppressed or unsuppressed combo. Getting the gas port right is much better than putting a bandaid fix on it afterwards aka throwing a heavier buffer into the system.

[Clint]

Actually there is an ideal for the size of gas port given your barrel, ammo and suppressed or unsuppressed combo. Getting the gas port right is much better than putting a bandaid fix on it afterwards aka throwing a heavier buffer into the system.

^ this is absolutely correct.

It shouldn't be a surprise that gas port size is a critical parameter in gas operated weapons.

[Tokarev]

@99HMC4

Can the LARB 2 be ordered with all tungsten? I'd like to try one in my DPMS G2 Recon.



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[CESwartz07]

I would start with an H3. If it fails to lock back with your weakest ammo, then drop down to an H2


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