CZ Custom CZ SP01 Accu Shadow, Double Action/Single Action, Semi-automatic, Metal Frame Pistol, Full Size, 9MM, 4.6 Barrel, Steel, Polycoat Finish, Black, Aluminum Grips, Fiber Optic Front/Adjustable Rear Sight, Manual Safety, 19 Rounds, 2 Magazines 91033 The Shadow platform has been known for accuracy and the Accu-Shadow takes it to the next level. The Accu-Bushing system holds the barrel with much more precision, enabling CZ to cut group sizes nearly in half. In testing, the pistols returned groups substantially less than 3" at 50 yards (using Fiocci 124 JHP). Add to that a full complement of custom work including competition hammer, lighter springs (11 lb. recoil, 13 lb. main), thin black aluminum grips, stainless steel guide rod and polished internals.