The P2000 SK model is a small "sub-compact" version of the P2000
The P2000 SK is a short recoil-operated locked breech pistol with a modified Browning-type linkless cam action with a vertically tilting barrel also employed in the USP series of self-loading pistols, as well as most modern linkless semi autos.
The cold hammer-forged barrel has a polygonal profile while the slide is made from a solid bar of nitro-carburized steel. Following recent trends in modern pistol designs, the P2000 SK makes extensive use of impact-resistant polymers to reduce weight and production costs.
As with other recent Heckler & Koch pistol designs, the P2000 SK is modular to suit individual needs. For instance, the grip is modular with exchangeable backstraps to adjust to individual grips, allowing the user to customize the pistol\'s grip size. There is an interface for accessories built into the frame in front of the trigger guard; the universal accessory rail on the dust cover that allows for the use of tactical lights, laser pointers and other accessories. Attachment is positive and does not require any tools. This is in contrast with the USP series, which uses a proprietary H&K mounting rail that limits the types of accessories that could be used with the pistol.
The P2000 SK is a hammer-fired pistol with an exposed spurred hammer; a bobbed hammer is optional. It has ambidextrous slide locks and a fully-ambidextrous magazine release installed in the trigger guard, on both sides. Various trigger and cocking systems offer the possibility of converting the trigger firing mode from one type to another. Several variants are available based whether the LEM (Law Enforcement Modification) trigger (H&K\'s double-action only) mechanism is used versus a SA/DA trigger. The following options are available:
V0 – CDA (Combat Defense Action) trigger system (SA/DA). Single-action trigger pull of 20 N (4.5 lbf) (+4/-2 N), double-action trigger pull – 51 N (11.5 lbf) (±5 N).
V1 – CDA trigger system (LEM). The LEM trigger is a dual-stage trigger that fires from a hammer down position in both SA and DA modes, but has an internal mechanism that is cocked with each cycle of the action. It provides a constant trigger pull of 20 N (4.5 lbf) (+4/-2 N).
V2 – CDA trigger system (LEM). Like P2000 V1 but with an increased trigger weight. The trigger pull is 32.5 N (7.3 lbf) (±2.5 N).
V3 – SA/DA trigger with a decocking lever mounted at the posterior of the slide to the left of the spurred hammer. Single-action trigger pull of 20 N (4.5 lbf) (+4/-2 N), double-action trigger pull – 51 N (11.5 lbf) (±5 N).
V4 – CDA trigger system (LEM). Like P2000 V1 and V2 but with a mid-range trigger pull of 27.5 N (6.2 lbf) (±2.5 N).
V5 – Double-action only (DAO) trigger system. Trigger pull of 36 N (8.1 lbf) (±3 N).
The P2000 SK is available chambered in 9x19mm Parabellum, .357 SIG or .40 S&W and rated for shooting high-pressure +P ammunition in either 9mm or .40 S&W.