The Midwest Industries Upper Receiver Rod (brand part no. MI-URR) works with any standard M4/M16 barrel extension, giving builders a way to remove stubborn or seized barrel nuts without damaging the upper receiver. It is also useful for muzzle device installation and for installing forward assist or port door covers, and it can be installed either horizontally or vertically in a bench vise depending on your workspace. It is machined from 4140 steel for strength. Note that it is not compatible with 9mm or rimfire barrels, the DPMS G2 .308, or the Sig MCX Virtus and Rattler platforms.

Key Specifications

• It is 15.2 inches long and made from 4140 steel.
• It works with any standard M4/M16 barrel extension to remove stubborn or seized barrel nuts.
• It also assists with muzzle device installation and installing forward assist or port door covers.
• It can be installed horizontally or vertically in a bench vise.
• It is not compatible with 9mm/rimfire barrels, the DPMS G2 .308, or the Sig MCX Virtus/Rattler.

Frequently Asked Questions

What is this rod used for? Removing stubborn or seized barrel nuts on standard M4/M16 pattern uppers without damaging the receiver.

Does it work with every AR pattern? No — it is not compatible with 9mm/rimfire barrels, the DPMS G2 .308, or the Sig MCX Virtus/Rattler.

Buy the Midwest Industries Upper Receiver Rod

A rod built specifically to protect the upper receiver while breaking a stuck barrel nut free is cheap insurance against a damaged gun. Order it from Midwest Industries through our Lubbock, Texas gun shop for fast, insured shipping, and browse more of our gunsmithing tools.