Smith Enterprise armorer's barrel wrench is a handy tool to have when building an AR-15. This one compact tool does the job of many. This tool will come in handy for torqueing down a barrel nut, tightening or removing a flash hider, and installing an A2 extension tube. The 1/2" opening allows the attachment of a ratchet or torque wrench, for precision work.
Barrel nut wrench
Flash hider wrench
A2 extension tool
1/2" opening to attach ratchet or torque wrench
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