Detail stripping of the US M3 submachine gun, known as the 'Grease gun,
How to field strip a US M3 submachine gun otherwise known as a 'Grease Gun
... M3 U.S. Submachine Gun cal .45 (Grease Gun) Field Stripping
Actuate the vent valve until grease emerges; 35.
... 32. 31 Grease Guns ...
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