This review of the M3 'Grease Gun' submachine gun, a 1944 production model chambered in .45 Auto, highlights its historical significance as a cost-effective replacement for the Thompson. The presenter, demonstrating expert handling and knowledge, details its features, including a unique dust cover safety, a 30-round magazine, and an ingenious retractable stock that doubles as cleaning tools. The video showcases its compact design, lower rate of fire, and surprisingly high collector value, estimated at $25,000, making it rarer than its predecessor.
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