A2 AR-15 Buffer Tube Assembly Kit.

A2 AR-15 Buffer Tube Assembly Kit.  SKU: UB_AS5P04.  Comes with Buffer Tube Made in the USA

A2 Buffer Tube Assemby kit is for mounting a M16A2 fixed buttstock. Kit includes receiver extension tube (made in the US), recoil buffer, buffer spring, buttstock spacer, and buttstock screw.

Works great with...