Mac-10 9mm Single Feed Bolt Assembly For Smg & Ob

If you are looking for a hard to find Mac-10 SMG 9mm Single feed bolt assembly then this the part for you! It will allow you to use the Mac-10 9mm steel magazines, that we sell or the Cobray Zytel mags. Please if you have any questions on application. For SMG & Open bolt semi auto only, does not work with closed bolt or newer Semi Auto.