The USP.45 is a pistol featured in Tom Clancy's Splinter Cell: Conviction and is available for use by the player. It is the last pistol unlocked in story mode, available after you complete the Lincoln Memorial mission, where it is the pistol used to kill Lucius Galliard. Unlike it's larger sibling, the MK.23, the USP.45 is not equipped with a suppressor. The weapon is very balanced without upgrade. With all the upgrades, the USP.45 is statistically a more powerful, slightly lower capacity P228, with all other stats being identical. However, the stats do not correctly reflect it's performance as actually, the gun is far less accurate at range than the P228 and has shorter range for mark and execute. It is best used in close combat. The upgrade will also make the USP one of the three pistols able to still kill helmet-wearing enemies in one shot. With the Reflex Sight the USP.45 can mark 3 targets, but at a fairly limited range.
Asides from not being suppressed, the USP has a moderate magazine capacity of 12 rounds, easily outmatched by the other pistols in the game, bar the Desert Eagle, although as pistols have unlimited reloads in Conviction this is ultimately not too big of an issue.