The replacement upgrade UTG A2 buffer for your rifle-length AR15 is a high-quality rifle length buffer, weighing 5.0 oz, and made to military specifications for 223/5.56. rifles. The rifle-length A2/A1 buffer has a reinforced body with hardcoat anodizing, 5 steel weights, and 1 aluminum spacer and is specifically designed for AR15 A2 rifles with fixed buttstocks. It fits AR-15 rifles with an A1, A2 receiver with a rifle-length buffer tube.
Note Do Not Use In a carbine length buffer tube models will cause damage to the rifle.