Web Exclusive: M3 Grease Gun

Published on February 26, 2016
Duration: 1:04

This video details a field modification performed on an M3 Grease Gun submachine gun. When a soldier's original crank handle was damaged in combat and no replacement was available, an ordnance sergeant cut a slot in the receiver and installed a crude bolt handle to restore functionality. This demonstrates a resourceful, albeit basic, repair technique used in the field.

Quick Summary

A field modification for the M3 Grease Gun involved cutting a slot in the receiver and installing a crude bolt handle when the original crank handle was damaged and replacements were unavailable. This resourceful repair allowed the firearm to be returned to service.

Chapters

  1. 00:04Introduction to M3 Grease Guns
  2. 00:12Modified M3 Grease Gun Example
  3. 00:21Original Crank Handle vs. Modification
  4. 00:33Firearm Sent for Repair
  5. 00:45Field Modification Process
  6. 00:57Result: Field Modified M3

Frequently Asked Questions

What was the common name for the M3 submachine gun?

The M3 submachine gun is commonly referred to as the 'Grease Gun'. This nickname likely originated from its appearance, which resembled a mechanic's grease gun.

How was a damaged M3 Grease Gun crank handle repaired in the field?

In the field, if a replacement crank handle was unavailable, an ordnance sergeant would cut a slot into the receiver and install a simple bolt handle to manually operate the bolt and restore functionality to the firearm.

What was the purpose of the crank handle on the original M3 Grease Gun?

The crank handle on the original M3 Grease Gun was used to manually operate the bolt. This allowed the user to chamber a round, clear malfunctions, or cycle the action of the firearm.

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