Description
Proto Barrel Backs are manufactured with premium 6061-T6 high-grade aluminum and honed to .690 and 8 micron finish.Change up color and style with a new Proto barrel back.
Description
Proto Barrel Backs are manufactured with premium 6061-T6 high-grade aluminum and honed to .690 and 8 micron finish.Change up color and style with a new Proto barrel back.