The Black Mamba build utilizes a polymer Ruger MK IV 22/45 frame that has been retrofitted with our Accurizing Kit providing a crisp, clean 2.25 lb trigger pull. The frame has also been fitted with our magazine release that, when used in conjunction with our magazine base pads (included standard), eliminates feeding issues. This is accomplished by raising the magazine's position in the frame, allowing the bolt to more positively engage each round as it feeds. The Black Mamba combines features from our Scorpion 22 LR Target Pistol along with the push button takedown functionality of the Ruger MK IV platform. - CALIBER .22LR - MAGAZINES (2) 10rd capacity - BARREL 4.5" w/ compensator - SIGHTS Target - GRIPS Rubber Hogue