The Umarex Hammer has a multitude of useful and user-friendly features that both hunters and shooters appreciate. In addition to being a powerful airgun delivering three regulated, full-power shots, its big bore air rifle offers multiple shots from its chamber magazine. Unique to the Hammer is the utilization of two safeties, a magazine lockout that prevents it from discharging without a magazine inserted, and a trigger block safety. There are three locations in the rifles forearm that accept M-LOK accessories and incorporated a sling stud into the lower half of the rear stock. Included are a machined 8.5" Picatinny rail, Standard Magpul AR style grip, two safeties, rear sling stud, three M-LOK attachment points, quick filling Foster connection for the tank and a three lb. trigger. Shoots Umarex Speedbelt ARX Airgun 50 cal slugs in addition to lead.