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Posted: 2/13/2002 6:13:31 AM EDT
Can anyone tell me a good source of information on M1 carbines. They're not really my style and I don't know much about them, but recently I came into ownership of one. The receiver is marked as 30. cal, however the barrel is clearly that of 22. cal. The receiver is mark Plainfield, even the barrel. Any idea? Thanks in advance. Mike
Link Posted: 2/13/2002 6:25:04 AM EDT
Sounds like one of the commercial weapons, chambered in 5.7 "MMJ",AKA ".22 Spitfire"..

You'll probably have to roll your own ammo from necked down .30 carbine cases.

Link Posted: 2/13/2002 6:43:12 AM EDT
Believe there were some 22 rimfire copies made at one time......what does the mag/chamber look like?
Link Posted: 2/13/2002 6:44:58 AM EDT
There are a couple message boards that specialize either in M1 Carbines, or US military weapons.

Jouster's M1 Carbine forum:

Gunboards US Weapons forum:

Hope this helps.
Link Posted: 2/13/2002 7:05:33 AM EDT
No doubt that the receiver is 30. cal, I was worried about it being fitted for a wildcat though, don't have much use for that. I was wondering if it might be of some value, and maybe see if there was a way to find the date of manufacture. Thanks Guys
Link Posted: 2/13/2002 7:10:24 AM EDT
What make is it? If it is a commercial copy you will find the maker on the front receiver bridge. If not, the maker will be under the rear sight (military). There were a few that were made in .22 rimfire that look like a .30 carbine. I'm looking for an M1 just for grins. Not a collectible, just a shooter. Let me know if you want to rid yourself of that one.
Link Posted: 2/13/2002 7:16:53 AM EDT
Hi Scott, The receiver is marked "Plainfield Machine, Dunellln, N.J. Cal. 30 M-1.
Link Posted: 2/13/2002 7:21:33 AM EDT
It is also marked behind the rear sight, ser# 33###
Link Posted: 2/13/2002 8:03:02 AM EDT
Plainfield is an aftermarket rifle. I would guess that it is a wildcat of some sort. Look at the Chamber and the magazine to see if they are large like the 30 carbine round or small like the .22 long rifle.
Link Posted: 2/13/2002 9:12:31 AM EDT
Plainfield is one of the better commercial copies. Most if not all U.S.G.I. parts will interchange. If .30 Carbine mags fit then most likely all you would have to do is rebarrel for .30 Carbine and your in business. The P.D. I work for has several Plainfields in the M-2 configuration. They are great little rifles. The .30 Carbine really doesn't get the respect it deserves.
Link Posted: 2/13/2002 9:58:05 AM EDT
I have a Plainfield M-1 carbine in .30carbine. Picked it up used in 1980 from a N.J. gunshop. I paid a whopping $135.00 for it. The clerk told me it was one in a batch of trade-ins from some P.D. It functions flawlessly even though the finish isn't on par with the gov't carbines I own. You could possibly have one of the Johnson Spitfire .22 versions. See if you can get a copy of War Baby!II. It's interesting reading anyway.
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