B&T's MK II was designed for real-world use and comes packed with features. The slide has been outfitted with an optics cut to accept the Shield Reflex Mini Sight, and features an adjustable rear. The MK II also comes with a threaded barrel with M13.5x1 LH threading for use with a suppressor, a rubberized no-slip grip, and an under-barrel picatinny rail allows for the installation of lights, lasers, and other accessories. UPC 840225707632 Action SINGLE ACTION Barrel Length 4.3 BARREL Caliber 9MM LUGER (9X19 PARA) Capacity 17 ROUNDS Finish TWO-TONE Muzzle Type THREADED