The key is designed for twisting and unscrewing the lock nut of the M4 type Mil-Spec/Com-Spec telescopic butt.
1. Allows you to tighten the lock nuts on the telescopic butts.
2. A bottle opener is placed on the handle of the key.
3. The large wrench allows you to work with nuts of different sizes.
Material of manufacture: Steel with subsequent carbonation of the surface.
Weight: 105 gram