Angstadt Arms Buffer kit, .40/.45 AR Pistols, 8 oz Buffer, Buffer Spacer and Buffer Spring, Anodized Black Finish

The Angstadt Arms 9mm heavy buffer assembly kit is compatible with blowback AR-9 style firearms chambered in 9mm, 40S and W and 45ACP. Includes 8oz solid state buffer and carbine buffer spring. • Complete drop-in 9mm AR-15 buffer kit • Compatible with 9mm, 40S&W and 45ACP • 8oz buffer weight • Includes buffer and carbine spring