USCARBINECAL30M1.com M1 Carbine Components Listing by Manufacturer
* All dates and serial numbers are approximate *
USCARBINECAL30M1.com M1 Carbine Components List
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UEF | Barrel | Type 1 | Unmarked | 1350000 - 6199688 | Marked "UNDERWOOD". All were date marked. |
UEF | Barrel Band | Type 1A | Unmarked | 1350000 - 6099999 | |
UEF | Barrel Band | Type 2 | Unmarked | 6100000 - 6199688 | |
UEF | Barrel Band Spring | N/A | Unmarked | 1350000 - 6199688 | |
UEF | Bolt | Type 2 | ".U.", SU, WU, CU | 1350000 - 6099999 | Flat bolt. |
UEF | Bolt | Type 3 | WU, .U. | 6100000 - 6199688 | Round bolt. |
UEF | Buttplate | N/A | Unmarked | 1350000 - 6199688 | |
UEF | Buttplate Screw | N/A | Unmarked | 1350000 - 6199688 | |
UEF | Ejector & Spring | Type 1 | Unmarked | 1350000 - 4009999 | |
UEF | Ejector & Spring | Type 2 | Unmarked | 2352520 - 6199688 | |
UEF | Extractor | Type 1 | Unmarked, ".U." | 1350000 - 1357999 | |
UEF | Extractor | Type 2 | ".U." | 1358000 - 1381999 | |
UEF | Extractor | Type 3 | ".U.", MU, KU | 1382000 - 6199688 | |
UEF | Extractor Spring & Plunger | Type 1 | Unmarked | 1350000 - 1357999 | |
UEF | Extractor Spring & Plunger | Type 2 | Unmarked | 1358000 - 1381999 | |
UEF | Extractor Spring & Plunger | Type 3 | Unmarked | 1382000 - 6199688 | |
UEF | Firing Pin | Type 1 | ".U.", DU, WU | 1350000 - 4009999 | |
UEF | Firing Pin | Type 2 | ".U.", DU, WU | 1350000 - 4009999 | |
UEF | Firing Pin | Type 3 | ".U.", DU, WU | 2352520 - 6199688 | |
UEF | Front Sight | Type 1 | Unmarked, ".U.", TR | 1350000 - 4009999 | |
UEF | Front Sight | Type 2 | EU, SIU | 2352520 - 6199688 | |
UEF | Front Sight Key | N/A | Unmarked | 1350000 - 6199688 | |
UEF | Front Sight Pin | N/A | Unmarked | 1350000 - 6199688 | |
UEF | Gas Piston | N/A | Unmarked | 1350000 - 6199688 | |
UEF | Gas Piston Nut | Type 1 | Unmarked | 1350000 - 2352519 | |
UEF | Gas Piston Nut | Type 2 | Unmarked | 2352520 - 6199688 | |
UEF | Hammer | Type 1 | ".U.", H | 1350000 - 1361999 | |
UEF | Hammer | Type 2 | ".U." | 1362000 - 6098689 | |
UEF | Hammer | Type 3 | "O .U.", ".U.", WU | 2380000 - 6199688 | |
UEF | Hammer Pin | N/A | Unmarked | 1350000 - 6199688 | |
UEF | Hammer Plunger | N/A | Unmarked | 1350000 - 6199688 | |
UEF | Hammer Spring | Type 1 | Unmarked | 1350000 - 2379999 | |
UEF | Hammer Spring | Type 2 | Unmarked | 2380000 - 6199688 | |
UEF | Handguard | Type 1 | PEDERSEN U, RMC, M-U, P-U | 1350000 - 1439999 | |
UEF | Handguard | Type 2 | P-U, M-U | 1440000 - 6199688 | |
UEF | M.C. / Safety Spring & Plunger | Type 1 | Unmarked | 1350000 - 6199688 | |
UEF | Magazine Catch | Type 1A | ".U." | 1350000 - 1369999 | |
UEF | Magazine Catch | Type 2A | AU, ".U." | 1370000 - 6199688 | |
UEF | Operating Slide | Type 2 | Circled OU, Circled ".U.", ".U." | 1350000 - 4049999 | May also be marked with Ordnance Flaming Bomb. |
UEF | Operating Slide | Type 3 | Circled "O.U.", Circled ".U.", Hearted F w/ ".U.", | 2352520 - 6099688 | May also be marked with Ordnance Flaming Bomb. |
UEF | Operating Slide | Type 5 | W w/Underlined U, Circled "O.U." | 6099689 - 6199688 | |
UEF | Operating Slide Spring | N/A | Unmarked | 1350000 - 6199688 | |
UEF | Operating Slide Stop | Type 2 | Unmarked | 1350000 - 6199688 | |
UEF | Operating Slide Stop Spring | N/A | Unmarked | 1350000 - 6199688 | |
UEF | Rear Sight | Type 1 | S | 1350000 - 6199688 | Right base unmarked. Leaf marked ".U.". |
UEF | Receiver | N/A | N/A | 1350000 - 6199688 | |
UEF | Recoil Plate | Type 2 | ".U." | 1350000 - 4074999 | |
UEF | Recoil Plate | Type 3 | AU, ".U." | 2352520 - 6199688 | |
UEF | Recoil Plate Escutcheon Nut | Type 1 | Unmarked | 1350000 - 6199688 | Early production. |
UEF | Recoil Plate Escutcheon Nut | Type 2 | Unmarked | 1350000 - 6199688 | Late production. |