-Quick and easy install
-Minimal shell modifications necessary. Just cut the bottom.
-No gluing required
-Accepts a wide range of barrel materials. 5/8″ OD is the standard, but can take as small as 1/2″
-All hardware included (2 screws for ram, ram base orings, ramtip orings, pin for mag release, mag release spring, 6″ .527 OD barrel)