In Alien Trilogy, Ripley is armed initially with the 9mm as her default weapon. Certain Company Security Guards also use the 9mm pistol and some can be collected off of dead Marine remnants. The weapon is relatively weak against adult Xenomorphs and some human enemies, but is very effective against Facehuggers and Chestbursters.
- The pistol bears some resemblance to the Colt M1911. However, the M1911 is primarily chambered for .45 ACP rounds and the 9mm is chambered for 9mm rounds. This could mean that the 9mm is supposed to be the 9mm chambered M4 Pistol seen in Aliens: Colonial Marines Technical Manual.