AR15 Thumbhole Stock

A1-length thumbhole buttstock for AR-15 and Airsoft M4 gas blowback (GBB) rifles. Universal fit for rifle, commercial carbine, and mil-spec carbine buffer tubes.

For installation on rifle buffer tubes, an upper buttplate screw is required and might need to be shortened for full buffer travel.

For installation on carbine buffer tubes, you will need a nylon- or brass-tipped 1/4"-20 set screw and long hex wrench. Apply pressure while driving set screw to form threads.

A standard grip screw