Helps Shed Carbon For Easy Cleaning & Long Service Life

Precision machined, 420 stainless steel pistons are highly polished and heat treated for a smooth, hard surface that resists carbon build-up, reduces friction, and helps maintain critical tolerances for improved service life and reduced gas cylinder cleanings. Smooth surface Stainless Steel piston is micro-finished, then electro-polished to prevent rounding of the gas grooves for smooth, reliable cycling and extended service life. Titainium Nitride model adds an extra hard, TiN coating for increased protection against burnt-in powder fouling, corrosion and excessive heat build-up. Also helps reduce wear of the push grooves for more consistent gas pressure.