Uniset M-4000

1 – Receiver, 2 – Barrel, 3 – Advance Lever, 4 – Strip Block, 5 – Nosepiece Assembly, 6 – Reset Pin, 7 – Reset Pin Cap, 8 – O-Ring, 9 – Trigger, 10 – Recocker Assembly, 11 – Piston W/Ring, 12 – Handle, 13 – Handle Button, 14 – Trigger Guard, 15 – Handle Bolt, 16 – Recocker Pin, 17 – Trigger Guard Screw, 18 – Advance Pin, 19 – Ball Bearing, 20 – Sear Lever Pin, 21 – Retainer Ring, 22 – Piston Ring, 23 – Lock Washer, 24 – Recocker Spring, 25 – Reset Pin Spring, 26 – Advance Lever Spring, 27 – Trigger Return Spring, 28 – Strip Ball Spring, 29 – Firing Mech Assembly, 30 – Sear Lever Assembly, 31 – Buffer