Steel, dual function wrench lets you easily remove your old extension tube and install a new-style, A4 stock.
Spanner has three lugs to fit the A4-style castle nut. Provides a non-slip fit so you can correctly torque the stock to the receiver.
Also, the comfortable, rubber coated handle features a cutout to fit the receiver extension tube to remove the A1 or A2 stock.
* Parkerized finish
* 19.3cm long