Fits: Sig Sauer P220, P228-229, SP 2022, P 226, P239, P245, Sig Sauer P210, P226 Standered & X Five
1. Nat of Axle.
2. Spring of cylinder's compaction.
3. External spring.
4. Cylinder's diaphragm
5. Internal axle.
6. Spring under zero compression
7. Cylinder's set screw