T-N.T. S&T M1903 Steel Upgrade Cylinder Retrofit kit
s-t-m1903-steel-upgrade-cylinder-retrofit-kit
Features
- Stainless Steel Cylinder. (sandblasted & electroplated with black chrome)
- Steel cylinder tail.
- Steel cylinder head.
- 7mm Steel spring guide.
- Aluminum CNC light weight 6 holes piston. (sandblasted + anode red)
- O-ring x3.
- T-N.T. save effort spring.