Description
The Gemtech Replacement Piston allows you to easily change threads on a Tundra, or Multimount LID to use on U.S. standard threaded pistol (1/2-28), European threaded pistols (M13.5x1mm LH), or even 9mm AR-15 carbines (1/2-36 – requires piston blocker tube). Installs in the field without the use of tools. Notes: LID body, spring and piston block not included. This is the threaded piston only
