I have been told to stay away from the Plainfield and Universal copies. Can anyone verify or is it iterweb rumor?
True for the Universals, largely true for the Plainfields (which includes the Iver Johnsons). I had an IJ Carbine in the 80s which had a bolt that was too soft. The locking lugs started to peen, so I had to send it back to the factory.
Early Universals will accept GI parts but the later models do not. You can ID the later Universals by the dual recoil springs, and skeletonized slide. Plainfields/IJs will take USGI parts.
Kahr/Auto-Ordnance currently makes
replica M1 Carbines. Reviews are mixed.
Unless you are very familiar with the M1 Carbine your best bet to get a gun that will shoot right without tinkering is to buy a USGI Carbine. From
Wikipedia, here's the list of GI contactors:
Inland Division, General Motors (production: 2,632,097), sole producer of the M1A1 Carbine. Receiver marked "INLAND DIV."
Winchester Repeating Arms (production: 828,059) Receiver marked "WINCHESTER"
Irwin-Pedersen (operated by Saginaw Steering Gear and production included with Saginaw total)
Saginaw Steering Gear Division General Motors (production: 517,213 ) Receivers marked "SAGINAW S.G." (370,490) and "IRWIN-PEDERSEN" (146,723)
Underwood Elliot Fisher (production: 545,616) Receiver marked "UNDERWOOD"
National Postal Meter (production: 413,017) Receiver marked "NATIONAL POSTAL METER"
Quality Hardware Manufacturing Corp. (production: 359,666) Receiver marked "QUALITY H.M.C."
International Business Machines (production: 346,500) Receiver marked "I.B.M. CORP."
Standard Products (production: 247,100) Receiver marked "STD. PRO."
Rock-Ola Manufacturing Corporation (production: 228,500) Receiver Marked "ROCK-OLA" [64]
Commercial Controls Corporation (production: 239) Receiver marked "COMMERCIAL CONTROLS"
Inlands are the most common and therefore usually the cheapest. Winchesters carry a premium due to the name. Rock-Olas carry a premium due to the relatively low number made. Let us know if you run into a Commercial Controls.
Pretty much any Carbine that's priced as a shooter will be a mix-master. E.g, Inland receiver with a Winchester barrel.
You should get yourself a copy of Jerry Kuhnhausen's
The U.S. .30 Caliber Carbines: A Shop Manual. It's worthwhile to get before you go shopping, because it will show you what to look out for.