Gemtech Suppressor Piston for GM-9 Multimount 9 Tundra Lid 1/2-28 Thread 18E8223D MO. Installs in the field without the use of tools. LID body Spring and Piston Block not included shown for illustrations only. This is the threaded piston only. Features of Gemtech Suppressor Piston for GM-9 Multimount 9 Tundra Lid 1/2-28 Thread: Easily change threads on a TUNDRA or MULTIMOUNT LID Use one suppressor on multiple platforms Installs in the field without the use of tools Threaded piston only Package Contents: Gemtech Suppressor Piston for GM-9 Multimount 9 Tundra Lid 1/2-28 Thread An extra LID Piston Core allows you to easily change threads on a TUNDRA or MULTIMOUNT LID to use one suppressor on multiple platforms. Installs in the field without the use of tools. LID body Spring and Piston Block not included shown for illustrations only. This is the threaded piston only. MO12169