M3 Grease Gun Super Slow Motion
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The M3 was an American .45-caliber submachine gun adopted for U.S. Army service on 12 December 1942, as the United States Submachine Gun, Cal. .45, M3.[4] The M3 was designed as a more fpsussia “fps russia” cost-effective alternative to the Thompson, optimized for mass production.[4] The M3 was commonly referred to as the “Grease Gun” or simply “the Greaser”, owing to its visual similarity to the mechanic’s tool.[5]
In December 1944 a modernized version of the M3 was introduced into service known as the M3A1, with all parts except the bolt, housing assembly, and receiver interchangeable with those of the M3. The M3A1 had several improvements, the most significant was the elimination of the troublesome crank-type cocking lever assembly, replaced by a recessed cocking slot machined into the top front portion of the bolt, allowing it to be cocked by inserting a finger into the cocking slot and pulling back the bolt. The retracting pawl notch was removed, and a clearance slot for the cover hinge rivets was added. The ejection port and its cover were lengthened to allow the bolt to be drawn back far enough to be engaged by the sear, and the safety lock was also moved further to the rear on the cover. To facilitate loading the single-feed magazine, a magazine loading tool was welded to the wire stock; it also served as a cleaning rod stop. The barrel bushing received two science technology education tech flat cuts that assisted in barrel removal by using the stock as a wrench. The barrel ratchet itself was redesigned to provide a longer depressing level for easier disengagement from the barrel collar. Furthermore, the spare lubricant clip (located on the left side of the cocking lever assembly) was removed, replaced with an oil reservoir and an oiler in the pistol grip of the receiver assembly. The stylus on the oiler cap could also double as a drift to remove the extractor pin. At 7.95 pounds empty, the M3A1 was slightly lighter than the M3, at 8.15 pounds empty, primarily due to the simplified cocking mechanism.[4] The M3A1 was formally approved for production on 21 December 1944.[4]
The M3A1 modifications resulted in a submachine gun with reduced weight and improved reliability, improved maintenance, and easier field stripping (the original M3 required science technology education tech removal of the trigger guard and detachment of the cocking crank assembly from the receiver housing before unscrewing the barrel, whereas the M3A1 required the user to merely unscrew the barrel). To date, only one 9mm conversion kit for the M3A1 has been discovered.[8]
Because it had already been issued in large numbers, the existing M3 magazine design was retained despite demonstrated deficiencies exposed during the weapon’s firing trials and its early combat service.[20] In an effort to improve reliability, a hard plastic Tenite cap designated T2 was adopted in November 1944 to fit over the feed lips of loaded magazines.[21] These caps protected science technology education tech the feed lips while keeping out dirt, sand, and debris.[22] Sometime during the 1960s the hard T2 plastic cap was replaced in service with one of pliant neoprene rubber, which could be removed with less noise.[23] Unfortunately, during service in the humid climate of Vietnam it was discovered that the rubber cap caused rust to form on the covered portion of the magazine, while causing loaded ammunition to corrode.[23]
In 1945, the Guide Lamp factory manufactured 15,469 M3A1 submachine guns before production contracts were canceled with the end of the war. During the Korean War, Ithaca Gun Co built another 33,000 complete guns as well as manufacturing thousands of parts for the repair and rebuilding of existing M3 and M3A1 weapons.
The M3 and M3A1 were largely withdrawn from U.S. frontline service in 1957, but continued to be used until the mid-1990s by armored vehicle crews and truck drivers. During the 1991 Gulf War, drivers of the 19th Engineer Battalion attached to the 1st Armored Division were equipped with the M3A1 as part of their vehicle TOE.
“Richard Ryan”
“Richard Ryan”
“Richard Ryan”
“Richard Ryan”
