Midwest Industries MIURR Upper Receiver Rod Black 4140 Steel Rifle M4,M16 1 Pieces

This upper receiver rod works with any standard M4/M16 barrel extension and is excellent for removing stubborn/seized barrel nuts without damaging the upper. It is designed for muzzle device installs and can be used to install forward assist/port door covers. It can be installed horizontally or vertically in a bench vise. Made in the USA. Not compatible with 9mm/rimfire barrels, DPMS G2 308, Sig MCX Virtus/Rattler.