Heckler & Koch SP5

The two guns built on the Heckler & Koch MP delayed blowback operating system are the Heckler & Koch SP5 and the Century Arms AP5. Ever since the 1980 SAS rescue at the Iranian Embassy in London, the MP5 has been an icon of smooth-shooting reliability and reduced recoil. The same smooth-operating delayed blowback action used in the MP5 is found in both of these guns. Both also feature the rotating drum diopter sight, which has four different apertures that allow the shooter to choose a large aperture for rapid target acquisition at close quarters or choose a smaller one for precise aiming when shooting targets at longer distances. Since the AP5 is basically a clone of the SP5 , both guns are highly similar except in price and overall level of exterior finish. The SP5 has a better finish, but it costs about twice as much as the AP5. Both guns take Heckler & Koch 30-round magazines.