This particular version the Defiant Stock Master is for the competitive shooter who needs a pistol in order to allow them entry into the world of competitive shooting. This version takes a Stock III Frame and Combines it with the Stock II Frame. Full Conical Bull barrels with Semi-Polygonal Rifling come standard. Moreover the slide has been lightened to increase cycle times and lockup. - CALIBER 9MM - MAGAZINE (2) 15rd capacity - SIGHTS Supersight Adjustable Rear Fiber Optic Front - FEATURE Extended Ambidextrous Safety