Brownells AR-15/M16 Carrier Key Bit Kit - 3 Piece

The Brownells AR-15/M16 Carrier Key Bit Kit is a 3-piece tool set designed for tightening and servicing the carrier key screws on AR-15 and M16 bolt carrier groups. Purpose-built for gunsmithing tasks, this kit provides the correct bit profiles needed to properly stake and torque carrier key fasteners without damaging surrounding components. Compatible with standard AR-15 and M16 platform rifles.