The entry into JP's D2 Series gas block lineup. These ultra-minimized designs will fit under most any hand guard on the market while adding negligible weight to the barrel. The D2 Series features a redesigned forward-facing adjustment that avoids any access interference with hand guards. This new adjustment design is also excellent and shedding dirt and fouling while doubling the adjustment clicks per rotation to provide extremely fine gas control. The two-piece design allows for easier installations even on barrels with pin-and-weld muzzle treatments. Features: Slim Profile Design: The D2 Series boasts a streamlined profile, purpose-built to fit cleanly beneath even th Mfg: J P Enterprises