USCARBINECAL30M1.com M1 Carbine Components Listing by Part Group
* All dates and serial numbers are approximate *
USCARBINECAL30M1.com M1 Carbine Components List
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| IBM | Hammer | Type 3 | AMB, GMB, WMB | 3651520 - 4000999 | |
| IBM | Hammer Pin | N/A | Unmarked | 3651520 - 4000999 | |
| IBM | Hammer Plunger | N/A | Unmarked | 3651520 - 4000999 | |
| IBM | Hammer Spring | Type 2 | Unmarked | 3651520 - 4000999 | |
| IBM | M.C. / Safety Spring & Plunger | Type 1 | Unmarked | 3651520 - 4000999 | |
| IBM | Magazine Catch | Type 2A | EPB, PR-B | 3651520 - 4000999 | |
| IBM | Safety | Type 3 | EPB, W-B | 3651520 - 4000999 | |
| IBM | Sear | Type 1 | BOB, SG-B, SWB | 3651520 - 3799999 | |
| IBM | Sear | Type 2 | BI, GB | 3800000 - 4000999 | |
| IBM | Sear Spring | Type 2 | Unmarked | 3651520 - 4000999 | |
| IBM | Trigger | Type 2 | HR, JU, PDB, SKB, SN, TB | 3651520 - 4000999 | |
| IBM | Trigger Housing | Type 4 | BE-B, Q-TX | 3651520 - 4000999 | |
| IBM | Trigger Housing Pin | Type 2 | Unmarked | 3651520 - 4000999 | |
| IBM | Trigger Spring | Type 2 | Unmarked | 3651520 - 4000999 | |
| Inland | Hammer | Type 1 | GI, HI, Shielded H | 1 - 219999 | |
| Inland | Hammer | Type 2 | HI | 220000 - 544999 | |
| Inland | Hammer | Type 2A | NI | 545000 - 949999 | |
| Inland | Hammer | Type 3 | HI, I-I, "I.K.", NI, WI | 950000 - 6899999 | |
| Inland | Hammer | Type 4 | I-I | 6900000 - 8069660 | |
| Inland | Hammer Pin | N/A | Unmarked | 1 - 8069660 | |
| Inland | Hammer Plunger | N/A | Unmarked | 1 - 8069660 | |
| Inland | Hammer Spring | Type 1 | Unmarked | 1 - 949999 | |
| Inland | Hammer Spring | Type 2 | Unmarked | 950000 - 8069660 | |
| Inland | M.C. / Safety Spring & Plunger | Type 1 | Unmarked | 1 - 5399999 | |
| Inland | M.C. / Safety Spring & Plunger | Type 2 | Unmarked | 5400000 - 8069660 | |
| Inland | Magazine Catch | Type 1 | WI | 1 - 11999 | |
| Inland | Magazine Catch | Type 1A | EI, WI | 12000 - 99999 | |
| Inland | Magazine Catch | Type 2 | EI, WI | 100000 - 259999 | |
| Inland | Magazine Catch | Type 2A | EI, WI | 260000 - 4879999 | |
| Inland | Magazine Catch | Type 3 | EI, HI, SI, WI | 4880000 - 7099999 | |
| Inland | Magazine Catch | Type 4 | EI, HI | 7100000 - 8069660 | |
| Inland | Safety | Tyep 2 | Unmarked | 255000 - 2999999 | |
| Inland | Safety | Type 1 | Unmarked | 1 - 254999 | Checkered |
| Inland | Safety | Type 3 | Unmarked | 3000000 - 7099999 | |
| Inland | Safety | Type 4 | EI, HI | 7100000 - 8069660 | |
| Inland | Sear | Type 1 | BI, RI | 1 - 3099999 | |
| Inland | Sear | Type 2 | BI, DI, RI, XI | 3100000 - 6849999 | |
| Inland | Sear | Type 3 | HI, RI | 6850000 - 8069660 | |
| Inland | Sear Spring | Type 1 | Unmarked | 1 - 89999 | |
| Inland | Sear Spring | Type 2 | Unmarked | 90000 - 8069660 | |
| Inland | Trigger | Type 1 | RI | 1 - 119999 | |
| Inland | Trigger | Type 2 | FI, RI a, RHI, RI | 120000 - 8069660 | |
| Inland | Trigger Housing | Type 1 | INLAND | 1 - 99999 | |
| Inland | Trigger Housing | Type 2 | INLAND | 100000 - 599999 | |
| Inland | Trigger Housing | Type 3 | INLAND | 600000 - 5499999 | |
| Inland | Trigger Housing | Type 5 | INLAND | 5500000 - 6849999 | |
| Inland | Trigger Housing Pin | Type 1 | Unmarked | 1 - 259999 | |
| Inland | Trigger Housing Pin | Type 2 | Unmarked | 260000 - 8069660 | |
| Inland | Trigger Spring | Type 1 | Unmarked | 1 - 999999 | |
| Inland | Trigger Spring | Type 2 | Unmarked | 1 - 8069660 | |