Reflex Suppressors, or Over the Barrel Suppressors have been manufactured for some time, but recently haven't been the focus by mainstream manufacturers. Griffin first made over the barrel suppressors over ten years ago with the introduction of the RSTA and SPR models. Meant to diminish blow back, provide superlative accuracy, excellent POI shift characteristics and add minimal system length, these suppressors were highly desirable among suppressor aficionados. UPC 689396838079 Brand GRIFFIN ARMAMENT Caliber Range .17-.300 WEATHERBY Caliber Rating .30 Color BLACK Diameter 1.5"