- Works with LR308 and AR10 308 barrels and receivers
- Ultimate tool for barrel nut installs
- Excellent for removing stubborn/seized barrel nuts without damaging upper
- Designed for muzzle device installs and will not damage index pin
- Can be used to install forward assist/port door cover
- Compatible with forged and billet LR308 and AR10 upper receivers
- Machined from 4140 Ordnance grade steel
- Durable Black Oxide finished for years of use
- Will not mar or damage exterior of upper receiver
- Receiver mounted sights can be left installed
- Can be installed horizontally or vertically in bench vise
- 100% Made in USA
*NOT COMPATIBLE WITH DPMS G2 308
ArmaLite® and AR10™ are trademarks of Armalite Inc
11 Reviews Hide Reviews Show Reviews
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5 308 upper receiver rod (for vise)
Posted by Kevin on Jul 4th 2024
Best tool I've ever used for barrel replacement and securing upper receiver for other work.
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5 Upper Receiver Rod .308
Posted by Charles Willkomm on Nov 16th 2023
This tool worked like a charm! Locked into place easily. Barrel nut, forearm and muzzle break installed easily because this tool supports the barrel. No torque on the upper receiver because it locks into the barrel extension . A little pricey but worth the $$ to assemble the upper receiver without damaging it.
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5 fixture
Posted by Jeffrey a Shapiro on Sep 15th 2023
well made well designed
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5 .308 reaction rod
Posted by Andrew Sampson on Apr 17th 2023
Of all the reaction rods I’ve researched this is hands down the best. I have the .223 model as well and I am so happy I bought another one for my .308 builds. Works flawlessly and takes the worry away from snapping threads off an upper by bracing and aligning the barrel and upper perfectly. Thank you for a great product!
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5 Upper receiver rod .308
Posted by Tony Trythall on Apr 16th 2023
Only used it once so far, but it worked beautifully, glad I took the time and did some research, that led me to Midwest industries, great product!
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5 MI URR 308
Posted by Pete North Las Vegas on Dec 9th 2022
Exact tolerances and can also be used to check upper receiver bore ID and extension lug alignment. Design captures the receiver in addition to the barrel extension unlike other designs that could still allow damage when tightening the barrel nut! Excellent finish! Best on the market! Fast shipping!
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5 308 and AR15 upper reaction rods
Posted by Romeo on Aug 18th 2021
This is the real deal, very well made it is strong, I looked at the others and would not trust them. I bought both of these and couldn’t be happier. Shipping was super fast and I would recommend to anyone, Great Job Midwest Industries
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5 URR Tool
Posted by Fat Panda Firearms on Mar 18th 2021
In my opinion both the AR15 and AR10 version of this tool are the best thing to use for AR platform assembly. I wasn’t able to get this tool from one of my distributors and decided to pay full retail for it based on its usefulness and quality. The Top sail on this device is what completely sets it apart from its competition as it holds both the barrel and Upper receiver in place when installing a barrel nut.
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5 Great tool!
Posted by Ethan on Mar 27th 2020
Love the tool! I'm using it to build my first AR10 using an Aero M5 upper and a Faxon match barrel. This tool fits these components perfectly. The removable tongue feature on top of the rod is something to appreciate; it adds extra support and reduces torque stress on the barrel extension lugs when cranking on a barrel nut or muzzle device. When removed, it enables a person to quickly or intermittently rotate the upper assembly without unlocking the tool from the vise in order to rotate it. As with other Midwest industries products, this rod is made of quality material and craftsmanship. One thing that would improve this tool, is if it came with a bottom plug feature like that of the Real Avid Lug Lock rod. This would enable the upper receiver to be locked in place and prevent it from sliding forward on the rod; a major benefit when removing a tight fitting hand guard or gas block. Nonetheless, I still give this tool a 5 star rating and recommend it to others!
