buffer weight

[montana]

I ONLY run H2 or heavier buffers in all AR platform. The 2.9-3 oz buffer is less reliable all around and is not used im any military specification. These days I am doing new builds with Vltor A5/BCM Mk2/SOLGW Loyal/Forward Controls length systems. Most every AR is overgassed and I have had what looked like short strokes actually be under sprung under buffer systems where the bolt was slamming back bottoming out and then bouncing so hard that the catch is not getting it nor was it stripping the next round. I only see you then out when the bolt catch got broken off.

The heavier buffers were developed to slow carrier velocity and prevent bolt bounce on full auto..The H 1 was developed to slow carrier velocity on the M4 platform ( allowed more time for the magazine to push the next cartridge into place) and the H2 was developed to stop full auto bolt bounce on the heavier barreled M4A1..The H3 buffer was developed for the now defunct firing port weapon..

With an adj gas block, heavier buffers are completely unnecessary in any semi auto carbine AR if the rifle is well maintained..

Heavier buffers on an over gassed semi auto AR rifle is a band aid and not a cure..Even with heavier buffers, the over gassed system will pound on the firing pin retaining pin and is hard on gas rings..

If the rifle is not going to have an adj gas block, then I will use a heavier spring with a lighter buffer and will only use the heavier buffers as a last resort..

The more reciprocating mass, the more felt recoil..

I personally don't care for the Vltor A5 system and use only the standard carbine length system..

A lot of different opinions in AR world..