$172.50Replacement bolt assembly for the M-11/9 SMG. Features a machined firing pin in the bolt face. INCLUDES the Bolt, Extractor, Extractor Spring, Extractor Roll Pin, Charging Handle Anti-Rotation Pin, Recoil Rod, Recoil Rod Roll Pin, Recoil Spring, Recoil Plate and Buffer. This bolt assembly is for use with the newer Extended Charging Handle that has an anti-rotaion feature. The bolt has a pin installed in it that the charging handle engages. This pin will prevent the original low profile charging handle from installing. Complete Assembled Bolt Assembly. Does not include Charging Handle.