Bravo Company USA MK2 Recoil Mitigation System Mod 1 T0 107102202 crafted from durable nylon that crafted from durable nylon that is both lightweight and resilient 5 hours on High Construction and Durability Durable anodized machined aluminum construction for long term reliability Controls and Features Interchangeable ambidextrous rear paddle switches for user preference Supports momentary and constant on operation Safe off feature helps prevent accidental activation and conserve battery life Mounting System Rail clamp allows fast tool free attachment and removal Designed for safe installation without placing hands in front of the muzzle Fits select Smith and Wesson Beretta Springfield Armory and Heckler and Koch 1913 subcompact handguns Power and Included Items Multi fuel design accepts CR123A battery or SL B9 rechargeable battery pack Includes CR123A battery mounting kit with keys high and low switches and multi tool Designed to enhance visibility and targeting capability in home defense and tactical situations Mil Spec diameter Lock Nut (Castle) M4 Receiver QD End Plate (include mount for QD swivel) Ships fast from GunCycle — free economy shipping on orders $99