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45 ACP seven-round magazine (NSN 1005-0) used in the current MEUSOC pistol.” That magazine only fits a 1911-style pistol, so it was obvious what kind of gun the Marines were looking for. 45 ACP using a single-stack magazine that must hold at least seven rounds.” Furthermore, the RFP stated it would be desirable if the pistol would “function with the Marine Corps. The RFP did not specifically request a 1911 platform but a “semi-automatic pistol in. So the bottom line is that it needs to work all of the time and anywhere. Also, there will be no time for cleaning or repairs. In the official Request For Proposal (RFP) the Marine’s stated that “the pistol’s operating environment is characterized by high usage in training, rough handling and environments on deployments, and limited access to repair and maintenance resources during high-tempo operations.” Translated, that means the pistol will see whatever environmental hell this world offers, whether the gun’s dropped in sand, caked with mud, dunked in salt water or driven over by trucks. In March 2010 the Marine Corps Systems Command issued a formal request for a pistol that would satisfy the demand.
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But there came a point when demand exceeded supply. It’s a testament to the 1911’s design and durability as well as to special operators’ preference for the weapon. The M45 was built with parts taken from in-stock M1911A1 pistols and other commercial parts. “The pistol will see whatever environmental hell this world offers, whether the gun’s dropped in sand, caked with mud, dunked in salt water or driven over by trucks…” The Marines use the M45 as a secondary weapon when conducting CQB operations. 45 caliber M45 Close Quarter Battle Pistol (CQBP). 45 caliber MEUSOC Pistol and later as the. The USMC Precision Weapons Section, in Quantico, Virginia, has been custom-building 1911s for the Marine Corp’s elite special operations and reconnaissance units since 1985, first as the.