Anyone using any of the new BCM.....?
Originally Posted by
JediGuy
I understand that. Both are heavier than the M16. I am curious whether the different biasing spring and adjusted weight of the T1 makes in the better all around option.
I would wager, pending actual testing (which should always occur with any mod made to any gun, obv), that the closest mass to the original Vltor A5H2 would be the "universal" solution. As Prepare highlighted, still the "H2" weight class.
I have been using 17-7 ph Colt rifle springs for years now in my A5's (And the Tubbs for suppressed use) and they have been rock solid. Sprinco Green is likely a better spring overall but usually gave me some muzzle dip on the return-to-battery stroke after tuning the buffer mass.
I always get my Colt rifle springs from Specialized Armament or Brownells.
I had a buddy who loved his modified A2 rifle stock but who also loved his super hot 77gr handloads through his 20" Colt. In every rifle buffer there is actually an aluminum spacer that occupies the space of two (IIRC) sliding weights. This results in the roughly 5.2-5.4oz rifle buffer mass. Trading those out for steel weights showed a noticeable improvement in his brass health and brought overall buffer mass into the low/mid 6oz range. 6.2-6.3iz if memory serves. Using a factory Colt rifle spring, it still ate .223 pressure Hornady steel case 55gr training ammo and PMC Bronze 55gr. Zero issues.
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Last edited by BufordTJustice; 12-04-22 at 13:21.
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