A version of the IvP-18 Tropov Machine Pistol, the S-FOX has been optimized for target acquisition in CQB situations. It has a higher fire rate and a low vulnerability to jams. Due to its reliability and accuracy it has become a favored sidearm for ISA and Helghast pilots alike.

The IvP-18 Tropov Machine Pistol is the standard pistol of the Helghast army. Like most Helghast weapons, it has a cylindrical magazine, located above the barrel, and it has both a single shot and burst fire mode.

The M3 Revolver had been relegated to ceremonial functions before a protracted Helghast blockade forced the ISA armory to return it into military service. This revolver has been equipped with new tritium sights and a double-action trigger for improved combat effectiveness and was redesignated the M4 Revolver.

The M4 Revolver is the standard-issue sidearm for the ISA Marines, and is the successor of the trusted M3 Revolver.

The M4 semi-automatic pistol is based on the Desert Eagle series and it fires from a 7 round magazine that is believed to use a smaller rounds than the M4 revolver. It was created to replace the revolver as a standard issue defense weapon for the regulars, while the marines favored the power of the larger round used by the revolver counter part.

The StA18 Pistol is the standard-issue Helghast pistol manufactured by Stahl Arms. It holds 12 rounds in a helical magazine on the front of the weapon.