Otis FG-276 B.O.N.E. Tool 7.62mm Bolt Carrier Cleaning Tool

The Otis FG-276 B.O.N.E. Tool is a purpose-built bolt carrier assembly cleaning tool designed for 7.62mm MSR/AR-platform rifles chambered in .308 Win. It scrapes carbon, fouling, and residue from the bolt, bolt carrier, and firing pin area that ordinary patches and brushes struggle to reach, making routine MSR/AR maintenance faster and more thorough.

The tool is CNC-machined from 1144 steel for long service life under repeated use. A coated brass nose piece centers the tool in the chamber for proper alignment without scratching or damaging the firearm. At just 2-5/8" x 5/8" and about 2.5 ounces, it tucks easily into a range bag or cleaning kit, and an integrated 8-32 threaded hole accepts a standard T-handle for extra leverage during stubborn cleanings.

This FG-276 model fits 7.62mm / .308 Win bolt carrier assemblies on AR-platform rifles. Add the B.O.N.E. Tool to your routine MSR/AR maintenance to keep your bolt and bolt carrier running reliably.