M+M M10X Gas Piston Sub Assembly – Rifle Length

M10x Gas Piston assembly.  The GAS Piston assembly is a vital part of the firearm. The latest version is precision CNC machined out of stainless steel and custom heat treated to withstand extreme corrosive environments and operating temperatures. The same applies to the Stainless Steel spring and washer.  
Replacement Piston Rod for the M10X rifle series. Complete drop in piston rod, ready for quick drop-in-and-go replacement. 

Features the newest recoil spring, heat shield and piston bushing to keep your rifle running cleaner longer.

Manufactured in the USA