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Effortlessly install your .308 AR barrel nut with the Brownells Torque Tool 🔧. Precision machined for reliable service and perfect alignment.

BROWNELLS 308 AR BARREL EXTENSION TORQUE TOOLS - BROWNELLS 308AR BARREL EXTENSION TORQUE TOOL

050806110847 080001040

Top takeaways

The tool aids in the easy and scratch-free installation of the barrel nut by providing straight-line torque.
It ensures proper alignment of the barrel, upper receiver, and gas tube ports while applying the correct amount of torque.
Designed for .308 ARs, it is precision machined from steel, but is not compatible with DPMS G2 versions.

Attributes

Weapon type: AR .308
Delivery weight: 1.361kg
Shipping height: 38mm
Shipping width: 64mm
Shipping length: 311mm
UPC: 050806110847

Item details

Made in USA

Specifications:
Make: AR .308

74.9 74.9 1 GBP

74.9 GBP £74.90

Prices inclusive of duty & VAT.

Product no.: 080001040

Mfr. No.: 100571

050806110847 Handy tool aids in applying straight-line torque for fast, easy installation of the barrel nut without scratching the exterior of the upper receiver. Helps ensure the right amount of torque is evenly applied, while maintaining proper alignment of the barrel, upper receiver, and gas tube ports. Use with any barrel nut wrench or free-float tube wrench and a torque wrench with a ½" square drive. Simply clamp the barrel nut wrench handle firmly in a bench vise, insert the barrel into the upper receiver, and finger tighten the barrel nut. Slide the barrel through the wrench, insert the Torque Tool in the back of the receiver until the teeth lock into the locking lugs in the barrel extension, and apply torque with the torque drive through the Tool to tighten the barrel nut. Precision machined from heavy-duty steel bar stock for years of reliable service. ?Available for the 308 AR. NOTE: Will NOT fit the DPMS G2 versions.

In stock

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Specifications:
Make: AR .308

Description:

Handy tool aids in applying straight-line torque for fast, easy installation of the barrel nut without scratching the exterior of the upper receiver. Helps ensure the right amount of torque is evenly applied, while maintaining proper alignment of the barrel, upper receiver, and gas tube ports. Use with any barrel nut wrench or free-float tube wrench and a torque wrench with a ½" square drive. Simply clamp the barrel nut wrench handle firmly in a bench vise, insert the barrel into the upper receiver, and finger tighten the barrel nut. Slide the barrel through the wrench, insert the Torque Tool in the back of the receiver until the teeth lock into the locking lugs in the barrel extension, and apply torque with the torque drive through the Tool to tighten the barrel nut. Precision machined from heavy-duty steel bar stock for years of reliable service. ?Available for the 308 AR. NOTE: Will NOT fit the DPMS G2 versions.

Top takeaways

The tool aids in the easy and scratch-free installation of the barrel nut by providing straight-line torque.
It ensures proper alignment of the barrel, upper receiver, and gas tube ports while applying the correct amount of torque.
Designed for .308 ARs, it is precision machined from steel, but is not compatible with DPMS G2 versions.

Attributes

Weapon type: AR .308
Delivery weight: 1.361kg
Shipping height: 38mm
Shipping width: 64mm
Shipping length: 311mm
UPC: 050806110847

Item details

Made in USA

Customers reviews

Customer ratings (8)

4.3 / 5

Definitely recommended

308AR Barrel Extension Torque Tool 03/06/2018

I am a hobby gunsmith. I enjoy building AR rifles. I have used both this tool and the AR-15 tool. They work. I find them very easy to use. They put very little stress on the upper receiver. read the included instructions.

Slightly recommend

No flats pain to use 18/05/2018

Wrote a in detailed review but they have a profanity detector that will not let it pass. I used 0 profanity. No flats makes everything difficult with this tool. Can not lock it into Vice. Have to lock barrel nut wrench into the vice and that does not work well.

Recommended

Economical alternative! 09/06/2017

Please check out the great Brownell's tutorial on Youtube to find out how to use this. In practice, you place your upper, with barrel and barrel nut affixed hand-tight, muzzle-down through a crows foot or armorer's wrench that hat been locked horizontally in your bench vise. This fixes the barrel nut and when you place this device in your barrel extension, the splines lock against the barrel extension, just as your bolt would. Now, when you attach your 1/2" drive torque wrench to the tool, your twisting rotates the barrel against the barrel nut, with no forces transferred to your upper itself.

If you want to use it upright, similarly to the more expensive options from Geiselle and Kley-Zion, you can. Since there are no flats on this tool, it will rotate in your vise when you apply torque. What you can do is get a breaker bar (also called a flex handle) with flat faces at the end that will clamp in your bench vise. With the 1/2 driver of the breaker bar protruding above the vise but locked upright by the vise jaws, and the breaker bar braced against the body of your vise to limit sidelong rotation, you can now place the end of the Extension Torque tool on the 1/2 driver without fear of it twisting as you work. Careful not to apply only downward and rotation force so the tool does not come up off of the driver. I hope these tips are useful to you!

Using both approaches, I was able to attach a BA 20" barrel to my new Aero Precision LR 308 upper and also time a VG6 Gamma 762 Muzzle Brake perfectly.

Just a pleased customer wanting to share my positive experience and tips to save you a bit of money versus the alternatives. I paid full boat for the tool and have not been compensated in any way for this review.

Definitely recommended

308 BARREL EXTENSION TORQUE TOOL 11/04/2015

As the previous reviewer stated, this tool is a must for barrel installation on most any 308 AR platform! I have now used it on 3 different 308 builds (Aero M5 & DPMS) and it has performed flawlessly! The tool does not transfer torque to the upper receiver as most vise blocks do and simply eliminates the possibility of scratching or marring the uppers finish during barrel nut installation. One other "Pro" to consider with this tool is cost, it comes in at a fraction of similar tools such as the "Geissele Reaction Rod". Although this can be easily corrected with a grinder, my only complaint with the tool is no flats were machined into the rear section such as Geissele chose to do with their version. If this were addressed by Brownell's I think this tool would have been perfect!

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