To find out about your gun's serial number simply click on your firearm.
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Looking at the pistol's frame, here are some rules to help you identify its maker: 1.
Since the slide is the only part actually marked with the manufacturer's name, you can see the problem that arises. Karwan in the 3/1/95 issue of Classic Firearms will shed some light. The guns themselves can help you reveal which company made the pistol's frame. World War II production: five (5) manufacturers made the M1911A1 pistol: * Colt * Ithaca * Remington-Rand * Union Switch & Signal * Singer Sewing Machine Co. 500) The problem with ID'ing M1911A1's is that parts are totally interchange- able, and during the lives of many examples their slides were many times switched or replaced.In 1983 the Series 80 Models were introduced with an additional passive firing pin safety lock and the half-cock notch was also redesigned.The MKIV Series 70 Government Model Colts were available in blue or nickel plate and were chambered in .45, .38 Super, 9mm and 9mm Steyr (foreign export only).This John Browning patent gun, Model 1911, was so named for the year it was officially adopted for use by the United States Army.
The Browning design was so great, that it has been changed little in over 100 years of production.
I wont' be much help in dating one of these guns after 1976.
As always, I suggest you call the Colt Archive at 1-800-962-COLT.
I have a really good friend in Memphis that once told me, "those folks in Nashville have been looking for somebody that can sing better than old George Jones for years, and they ain't found them yet".
People have been trying to make a better 1911 Colt for years and with all of the modifications they've come up with, I think the old original holds its own very well indeed.
The major changes were a slightly heavier slide and a slotted collet barrel bushing.