N2 Warden
Heavy pistol made by the Kuat Consortium. By default, semi-automatic, though some variants also feature limited burst-fire capability. With a standard 20-round clip, good accuracy and handling characteristics, and great reliability, the N2 Warden is a popular sidearm for police forces and militaries around the Web. With proper maintenance, the gun will rarely jam and last virtually forever. Even if it's not a particularly sexy gun, it's not an exaggeration to describe it as one of the all-time great pistols.
However, civilians (and criminals) find it a bit "chunky"; the burst mode is a bit much for an untrained operator, and the Warden is big (for a pistol) and not easily concealed. (For such users, Kuat recommends the N1 Self-Defender.)