|For an overview of submachine gun models, see submachine gun.|
This submachine gun filled National Guard arsenals after the Army replaced it with newer weapons. However, the "Grease" gun was simple and cheap to manufacture so there are still quite a few still in use. It's very powerful, but its .45 rounds lack the bonuses of 10mm rounds.
This SMG is decently fast, costing 1 AP less to fire than most other SMGs. However, it is limited by heavy ammunition, weighing 1 pound for every 10 shots. This makes the weapon rather cumbersome to carry, especially for low Strength characters.
- Female raiders between Broken Hills and Vault City carry this weapon, although they no longer spawn once the Chosen One eliminates the Raider threat.
- They are occasionally sold at the New Reno Arms by Eldridge.
- Big Jesus Mordino also gives the player character one when they kill Louis Salvatore.
- Carried by one of Myron's guards.
Behind the scenes
The Grease Gun is based on its real life counterpart, the M3 submachine gun, which entered service in the U.S. Army on December 12, 1942. Designed as a cost-effective substitute for the .45 caliber Thompson submachine gun, it was nicknamed the "Grease Gun" due to its similarity in appearance to the mechanic's tool of the same name.