Modify kit for MA-A1/RIS/SR16 Torque(21.6 S130+)
Kit consists of:
Modular gear set 21.6:1
Rotating spring guide
Piston
Tappet
Bore-up piston head
7mm stainless steel bushing
Bore-up cylinder
Bore-up cylinder head
Bore-up nozzle
Backstop latch
Synthetic lubricant with PTFE
MODIFY Full Tune-up Kit for M4-A1/RIS/SR16 (Torque 21.6/ S120+)Modular Gear Set + Cylinder + Piston head + Stainless Bushes + Cylinder head + Anti-reversal Latch + Tappet + Rotary spring guide + Piston + Nozzle + Spring + Synthetic Lubricant with PTFE.