Like the slightly larger P2000 model"" the P2000 SK (subcompact) combines elements of the successful HK USP Compact pistol with recent technological innovations from HK engineers only in a smaller"" more concealable design. Using such an enhanced trigger system consolidates ease of use and safety into a convenient"" innovative trigger operation one that prevents unintended firing. And in case of an ammunition-related failure to fire"" all that is needed is an additional second or third pull of the trigger without the need of first pulling the slide back to re-cock the Subcompact. A set of abbreviated industry standard mounting rails on the P2000 SK enable lights"" laser aimers"" and other accessories to be added by sliding them onto the open rail system. The HK P2000 SK also can use widely available"" reliable USP Compact magazines.