FP-45 Liberator

The FP-45 Liberator was a pistol manufactured for the United States military during World War II for use by resistance forces in occupied territories.The pistol had its origins in the US Army Joint Psychological Committee and was designed for the United States Army in 1942 by the Inland Guide Lamp Manufacturing Division of the General Motors Corporation in Dayton, Ohio. The army designated the weapon the Flare Projector Caliber .45 hence the designation FP-45. This was done to disguise the fact that a pistol was being mass produced. The Guide Lamp Division plant in Anderson, Indiana assembled a million of these weapons. The Liberator project took about 6 months from conception to end of production with about 11 weeks of actual manufacturing time, done by 300 workers.The Liberator was shipped in a cardboard box with 10 rounds of .45 ACP ammunition, a wooden dowel to remove the empty shell casing, and an instruction sheet in comic strip form[1] showing how to load and fire the weapon. Excess rounds of ammunition could be stored in the pistol grip.In reality, the Office of Strategic Services (OSS) never saw the practicality in mass dropping the Liberator over occupied Europe, and only a handful were ever distributed. Only the Chinese and resistance forces in the Philippines received the Liberator in any significant quantity. The Liberator was never issued to American or Allied troops and there is no known instance of the weapon ever actually being used in combat.

FP-45 Liberator
Class Manportable
Type Handguns
Manufacturer GM
Origin United States of America
Country Name Origin Year
United States of America 1942
Country Name Operational Year Retirement Year
United States of America View
ManufacturerName Production From Production To Quantity
GM View
The FP-45 was a crude, single-shot pistol designed to be cheaply and quickly mass-produced. It had just 23 largely stamped and turned steel parts that were cheap and easy to manufacture. It fired a .45 caliber pistol cartridge from an unrifled barrel. Due to this limitation, it was intended for short range use, 1–4 yards (0–5 m). Its maximum effective range was only about 25 feet (7.6 m). At longer range, the bullet would begin to tumble and stray off course.

Weight - 1 lb. (454 g)

Length - 5.55 in. (141 mm)

Barrel length - 4 in. (102 mm)

Cartridge - .45 ACP

Action - single-shot

Muzzle velocity - 820 ft/s (250 m/s)

Feed system - single shot

End notes