The UTG AR-15 rifle-length A2 buffer is high-quality. This 5.0 oz rifle-length A2 buffer is for use in full-length fixed-position A1/A2 buffer tubes-stocks. The UTG rifle-length A2 buffer is made to military specifications for 223/5.56 rifles. This A2 buffer has a reinforced body with hardcoat anodizing, five steel weights, and one aluminum spacer.
This is a Standard (Rifle-Length Buffer) for AR-15, M16, M16A1, M16A2, M16A3, M16A4 Rifles with a (Full Size A2/A1 stock using a A1/A2 Rifle Length Receiver Extention Buffer Tube).
Note: Do Not Use In a carbine length buffer tube models it will cause damage.