buffer weight issue

[Greyling]

for whatver it's worth, I had a blackout that was short stroking with my low powered 150grn cast lead bullets, even with a .125 gas port and carbine length gas system. I pulled 1 of the 3 weights out of the buffer. better, but still not good enough. So I cut 2 coils off the buffer spring and it has worked great ever since. Maybe the gas block was leaking, maybe my ammo was just too low powered, but remember, the AR was designed around the 223 round generating some 50K+ pressures. other calibers may need tweaking.