Additional information
| Unset U-2000 Boss 300 | 1 – Receiver, 2 – Barrel, 3 – Breech Block, 4 – Firing Pin, 5 – Extractor, 6 – Nosepiece, 7 – Piston Reset Pin, 8 – Reset Pin Cap, 9 – Trigger, 10 – Sear Pin, 11 – Trigger Spring Cap, 12 – Piston W/Ring, 13 – Firing Pin Collar, 14 – Buffer, 15 – Handle, 16 – Firing Pin Spring, 17 – Reset Pin Spring, 18 – Sear Spring, 19 – Trigger Return Spring, 20 – Firing Mech Spring, 21 – Extractor Spring, 22 – Piston Ring, 23 – Trigger Hinge Pin, 24 – Extractor Pin, 25 – Handle Bolt, 26 – Spall Guard |
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