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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| WRA | Operating Slide | Type 4 | W | 1250000 - 5579999 | |
| WRA | Operating Slide | Type 5 | W, W w/Part # | 5580000 - 7234999 | |
| WRA | Operating Slide | Type 6 | W w/Part # | 7235000 - 7369669 | |
| WRA | Operating Slide Spring | N/A | Unmarked | 1000000 - 7369669 | |
| WRA | Operating Slide Spring Guide | Type 1 | Unmarked | 1000000 - 1067499 | |
| WRA | Operating Slide Spring Guide | Type 2 | Unmarked | 1067500 - 7369669 | |
| WRA | Operating Slide Stop | Type 2 | Unmarked | 1000000 - 7369669 | |
| WRA | Operating Slide Stop | Type 3 | Unmarked | 1000000 - 7369669 | |
| WRA | Operating Slide Stop Spring | N/A | Unmarked | 1000000 - 7369669 | |
| WRA | Rear Sight | Type 1 | S | 1000000 - 5699999 | Very early sights may be unmarked. Right base and leaf unmarked. |
| WRA | Rear Sight | Type 2 | Shielded H | 5700000 - 6449999 | |
| WRA | Rear Sight | Type 3 | Shielded H, I.R.Co. | 6450000 - 7369669 | |
| WRA | Receiver | N/A | N/A | 1000000 - 7369669 | |
| WRA | Recoil Plate | Type 2 | W | 1000000 - 1139999 | |
| WRA | Recoil Plate | Type 3 | W | 1140000 - 7369669 | |
| WRA | Recoil Plate Escutcheon Nut | Type 1 | Unmarked | 1000000 - 7369669 | Early production. |
| WRA | Recoil Plate Escutcheon Nut | Type 2 | Unmarked | 1000000 - 7369669 | Late production. |
| WRA | Recoil Plate Screw | N/A | Unmarked | 1000000 - 7369669 | |
| WRA | Recoil Plate Screw | Type 2 | Unmarked | 1075000 - 1299999 | |
| WRA | Safety | Type 1 | Unmarked | 1000000 - 1074999 | Checkered |
| WRA | Safety | Type 3 | EW, SW | 1300000 - 7299999 | |
| WRA | Safety | Type 4 | EW | 7300000 - 7369669 | |
| WRA | Sear | Type 1 | W | 1000000 - 5599999 | |
| WRA | Sear | Type 2 | W | 5600000 - 7279999 | |
| WRA | Sear | Type 3 | W | 7280000 - 7369669 | |
| WRA | Sear Spring | Type 1 | Unmarked | 1000000 - 1039999 | |
| WRA | Sear Spring | Type 2 | Unmarked | 1040000 - 7369669 | |
| WRA | Stock | Type 1 | Unmarked | 1000000 - 1114999 | |
| WRA | Stock | Type 2 | Unmarked, W | 1115000 - 5559999 | |
| WRA | Stock | Type 3 | Unmarked, W | 5560000 - 7279999 | |
| WRA | Stock | Type 4 | W | 7280000 - 7289999 | |
| WRA | Stock | Type 5 | W | 7290000 - 7369669 | |
| WRA | Trigger | Type 1 | W | 1000000 - 1019999 | |
| WRA | Trigger | Type 2 | Inverted W, W | 1020000 - 7369669 | |
| WRA | Trigger Housing | Type 1 | O, W | 1000000 - 1011999 | |
| WRA | Trigger Housing | Type 2 | W | 1012000 - 1219999 | |
| WRA | Trigger Housing | Type 3 | W | 1220000 - 5699000 | |
| WRA | Trigger Housing | Type 5 | W | 5700000 - 7279999 | |
| WRA | Trigger Housing | Type 6 | W, Ax | 7280000 - 7369669 | Marking Ax: x = numerical digit. |
| WRA | Trigger Housing Pin | Type 1 | Unmarked | 1000000 - 1029999 | |
| WRA | Trigger Housing Pin | Type 2 | Unmarked | 1030000 - 7369669 | |
| WRA | Trigger Spring | Type 1 | Unmarked | 1000000 - 1349999 | |
| WRA | Trigger Spring | Type 2 | Unmarked | 1000000 - 7369669 | |