Midwest Industries MI308URR Upper Receiver Rod 4140 Steel Black .308 AR-10/LR-308 Armorer's Tool

The Midwest Industries MI308URR Upper Receiver Rod is a heavy-duty armorer tool built for working on .308 AR-platform rifles. Machined from 4140 steel and finished in black oxide, this rod threads into the upper receiver's barrel nut threads to provide a solid, non-marring platform for installing or removing stubborn barrel nuts without damaging the receiver, barrel, or finish.

Engineered specifically for the larger-diameter .308 platform, the MI308URR fits AR-10, DPMS LR-308, AR-308, SR-25, and Smith & Wesson M&P 10 uppers - it is not interchangeable with standard 5.56 AR-15 receiver rods. The robust 4140 steel construction resists flex under the high torque required to break loose factory or seized barrel nuts, and the precision-cut threads seat squarely in the receiver for a secure, repeatable hold job after job.

Whether you are swapping a barrel, replacing a handguard, or performing a complete upper build, the MI308URR gives you the confidence to apply serious torque while protecting your upper receiver investment. A must-have addition to any serious armorer's bench for owners of .308 AR-platform rifles.