- Large heavy duty cross section makes it easier on the hands to work on your AR lower receiver.
- You can remove/install M4 castle nuts with ease with this AR wrench. The castle nut wrench slips over the castle nut and nearly encompasses the castle nut for a more secure fit when installing or removing the M4 castle nut. Makes for assembling/installing collapsible stock buffer tubes a super easy task.
- The other end of the wrench is for installing/removing A2 Rifle buffer tubes (")".
- 1/2" and 3/8" drive compatible, for torquing your barrel nuts to the proper torque specifications.
- Steel Construction.
Pro Series AR15 Lower Receiver Wrench - heavy duty purpose built M4 castle nut wrench for collapsible stock buffer tubes
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