Job Description:

• 1) Assembles and aligns rifle barrels and receivers, using handtools and power tools, using either of following methods: Mounts barrel in vise and screws receiver onto barrel, using wrench.

• 2) Positions assembled barrel and receiver in concentricity gauge and marks areas on barrel where metal must be removed or raised to bring barrel and receiver into alignment.

• 3) Remounts barrel in vise, removes receiver, and scrapes metal from barrel shoulder, or peens receiver chamber, using hammer and peening tool to raise metal to form shim.

• 4) Mounts sighting bars at each end of barrel, sights between bars, and twists receiver to align bars.

• 5) Positions assembled barrel and receiver in alignment gauge.

• 6) Tightens receiver and barrel to adjust alignment according to dial gauge reading, using pneumatic gauge.

• 7) May screw barrel into receiver to specified pressure, using torque wrench.