jmkendall wrote:
An ANM2 would be a .50 cal, not .30.
M2 is the designation for a Machine Gun, 50 caliber.
AN is the designation for an Aircraft specific model. However; an .50 can be easily modified back and forth. We have a .50 in our Armory right now (Army National Guard) that is stamped AN.
Not neccessarily so. An ANM2 is a 30 cal, and can be used to designate a 50 cal, as well as a 20mm. (I have seen the manuals.) Many times an ANM2 50 cal is simply referred to as a 50 cal M2 aircraft gun.
The receiver and internal parts of an ANM2 30 cal are much smaller and lighter than a 1919 30 cal. The ANM2 30 cal is a very delicate looking weapon compared to a 1919, and almost tiny compared to an M2 50 cal.
The only differences between a M2 50 cal heavy barrel ground gun and an M2 50 cal aircraft gun was the omission of the barrel support, trunnion bushing, heavy barrel, sights, and the addition of a barrel jacket, trunnion adapter, sight covers, and lighter shorter barrel. They use the same bolt and buffer although the buffer is filled with oil in the lightened setup. The receivers are identical. Charging systems varied by use/installation.
M3 50 cal are different than the M2 50 cals as well.
To the original posters question about locating items, you might try BMGparts.com, gunbroker.com, ebay, and other gun websites. If you want real gun parts, I have seen ANM2 30 cal parts kits, less the right sideplate of course, at various times. I can not direct you to a source for propane fired guns. Good luck.