Enhanced Half Teeth Piston, Bolt Back M4 Series
Item No.: 1132
US$10
Enhanced High Speed Half Teeth Piston
Item No.: 1124
Enhanced High Speed Full Teeth Piston
Item No.: 1123
Enhanced Half Teeth Piston
Item No.: 1122
Enhanced Full Teeth Piston
Item No.: 1121
Enhanced Steel Non-return Gear
Item No.: 1078
US$9
Bolt Locks, Recoil Shock System M4
Item No.: 1072
US$33
Steel cut-off lever, Recoil Shock System M4
Item No.: 1071
US$16
Steel cut-off lever, Ver.2 Gear box
Item No.: 1070
US$12
Enhanced Tappet, Ver.3 Gear Box
Item No.: 1052
Enhanced Tappet, Ver.2 Gear Box
Item No.: 1051
Washers (0.1x5, 0.15x10, 0.2x10, 0.3x10, 0.5x5)
Item No.: 1050
US$7