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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| IP | Barrel | Type 1 | Unmarked | 1762520 - 3250019 | Marked "UNDERWOOD" with date marked. |
| IP | Barrel | Type 2B | Unmarked | 1762520 - 3250019 | Barrels marked from mixed manufacturers: "INLAND DIVISION" most date marked; "BUFFALO ARMS" date marked until October, 1943; "ROCK-OLA" date marked until June, 1943; |
| IP | Barrel Band | Type 1A | Unmarked, UP | 1762520 - 3250019 | |
| IP | Barrel Band Spring | N/A | Unmarked | 1762520 - 3250019 | |
| IP | Bolt | Type 2 | Unmarked | 1762520 - 3250019 | Flat bolt. |
| IP | Buttplate | N/A | Unmarked | 1762520 - 3250019 | |
| IP | Buttplate Screw | N/A | Unmarked | 1762520 - 3250019 | |
| IP | Ejector & Spring | Type 1 | Unmarked | 1762520 - 3250019 | |
| IP | Extractor | Type 3 | IP-W, W/S'G', S'G' | 1762520 - 3250019 | |
| IP | Extractor Spring & Plunger | Type 3 | Unmarked | 1762520 - 3250019 | |
| IP | Firing Pin | Type 1 | IP, S'G' | 1762520 - 3250019 | |
| IP | Front Sight | Type 1 | IPN, N | 1762520 - 3250019 | Left side may numerically indicate blade height. |
| IP | Front Sight Key | N/A | Unmarked | 1762520 - 3250019 | |
| IP | Front Sight Pin | N/A | Unmarked | 1762520 - 3250019 | |
| IP | Gas Piston | N/A | Unmarked | 1762520 - 3250019 | |
| IP | Gas Piston Nut | Type 1 | Unmarked | 1762520 - 3250019 | |
| IP | Hammer | Type 2 | IP | 1762520 - 1764999 | |
| IP | Hammer | Type 2A | S'G' | 1765000 - 3250019 | |
| IP | Hammer Pin | N/A | Unmarked | 1762520 - 3250019 | |
| IP | Hammer Plunger | N/A | Unmarked | 1762520 - 3250019 | |
| IP | Hammer Spring | Type 1 | Unmarked | 1762520 - 3250019 | |
| IP | Handguard | Type 1 | Unmarked, IR-IP | 1762520 - 3250019 | |
| IP | M.C. / Safety Spring & Plunger | Type 1 | Unmarked | 1762520 - 3250019 | |
| IP | Magazine Catch | Type 2A | B-IP, E-IP, IP-B, IP-W | 1762520 - 3250019 | |
| IP | Operating Slide | Type 3 | IP, S'G' | 1762520 - 3250019 | May be marked with Ordnance flaming bomb. |
| IP | Operating Slide Spring | N/A | Unmarked | 1762520 - 3250019 | |
| IP | Operating Slide Stop | Type 2 | Unmarked | 1762520 - 3250019 | |
| IP | Operating Slide Stop Spring | N/A | Unmarked | 1762520 - 3250019 | |
| IP | Rear Sight | Type 1 | S | 1762520 - 3250019 | Right base marked "RP" or "B-IP". Leaf marked "RP" or "B-IP". |
| IP | Receiver | N/A | N/A | 1762520 - 3250019 | |
| IP | Recoil Plate | Type 2 | IP-W, W-P | 1762520 - 1779999 | |
| IP | Recoil Plate | Type 3 | W-S'G' | 1780000 - 3250019 | |
| IP | Recoil Plate Escutcheon Nut | Type 1 | Unmarked | 1762520 - 3250019 | Early production. |
| IP | Recoil Plate Escutcheon Nut | Type 2 | Unmarked | 1762520 - 3250019 | Late production. |
| IP | Recoil Plate Screw | N/A | Unmarked | 1762520 - 3250019 | |
| IP | Safety | Type 2 | IP-A, IP-W | 1762520 - 3250019 | |
| IP | Sear | Type 1 | IP-SW, SW-IP | 1762520 - 3250019 | |
| IP | Sear Spring | Type 2 | Unmarked | 1762520 - 3250019 | |
| IP | Stock | Type 1 | IR-IP, O IA w/Flaming Ord Bomb, RMC | 1762520 - 1764999 | |
| IP | Stock | Type 2 | IR-P, RSG | 1765000 - 3250019 | |
| IP | Trigger | Type 2 | Unmarked, IP | 1762520 - 3250019 | |
| IP | Trigger Housing | Type 2 | IP, S'G' | 1762520 - 3250019 | |
| IP | Trigger Housing Pin | Type 1 | Unmarked | 1762520 - 1762999 | |
| IP | Trigger Housing Pin | Type 2 | Unmarked | 1763000 - 3250019 | |
| IP | Trigger Spring | Type 2 | Unmarked | 1762520 - 3250019 | |