| 主权项 |
1. An armorer tool for use with a barrel and an upper receiver of a firearm comprising:
an elongate member comprising a front portion, a rear portion, and a body portion between the front portion and the rear portion, the front portion comprising a plurality of splines configured to mate with lugs of a barrel nut extension of the firearm barrel, the rear portion comprising a surface configured to mate with a support mechanism; and at least one protrusion protruding beyond a profile of the body portion and disposed on the body portion at a location configured to be aligned with an ejection port of the upper receiver when the armorer tool extends through the upper receiver and is mated to the barrel. |
