Full Tune Up Kit for SIG 551/552 (M130 Original cylinder/Enlarged Nozzle Set)

This kit contains these parts:

Nozzle: [DF-CPN22p]
Cylinder Head: [DF-CPC05]
Cylinder: [DF-CPC15]
Piston Head: [DF-CPP14a]
Piston: [DF-CPP19]
Spring: [DF-CPS02]
Spring Guide: [DF-CPO06]
Bushing: [DF-CPO16]
Tappet Plate: [DF-CPO31]