
Originally Posted by
handyandy
So I have all of the A5 parts and I am trying to decide if I should put it on my KAC SR-15, or my favorite 14.5"er which has a DD HF barrel on it. I am leaning towards the DD. Right now, the DD works well with an H buffer and a Sprinco blue (STD) spring when shooting Brown Bear ammo. I am thinking that using the spring that came with the kit I'll end up with either the 5 or 6 oz. buffer, I can't see needing the 7 oz. Is any using the 7 oz. buffer? if so, for what ammo?
It's work great with either rifle. I'd recommend the 5oz buffer and a standard rate A2 rifle spring. My KAC SR15E3 now has the A5 system and with the 5oz buffer and the KAC Triple Tap. Actually shoots softer than my dedicated 3gun rifle which has the same A5 buffer system and a Surefire brake. The KAC has a tiny bit more muzzle lift but the actual push to the shoulder is softer!
My KAC SR15E3

My 3gun rifle, 16" BCM chrome-lined midlength, Lancer lower
Chief Armorer for Elite Shooting Sports in Manassas VA
Chief Armorer for Corp Arms (FFL 07-08/SOT 02)
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