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Q&A for Presma AR-15 .223 Barrel Vise Block Rod w/ Torque Block for .750 Barrels — 6 Questions & 8 Answers

Name Presma AR-15 .223 Barrel Vise Block Rod w/ Torque Block for .750 Barrels (3.7)
As Low As $37.99 Save Up to 14%
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Q
Big Ron, member, from AZ, United States, asked on April 29, 2025

Will this work on. 300blackout barrel

Manufacturer Answer
A
Answered by Charles Shi, Manufacturer from CA, United States, on May 07, 2025

The Presma .308 Barrel Vise Block Rod with Torque Block for .936" barrels is not designed for .300 Blackout barrels by default, unless your specific .300 BLK barrel has a .936" gas block journal diameter.

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Q
808Bran, member, from AR, United States, asked on July 14, 2024

will this work for 7.62 x 39 mm barrels?

Manufacturer Answer
A
Answered by Charles Shi, Manufacturer from CA, United States, on February 26, 2025

No, the other one will work with.
https://www.opticsplanet.com/presma-308-barrel-vise-block-rod-w-torque-block-for-936.html

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Q
Luis Sanchez, guest, from TX, United States, asked on January 31, 2024

Will this work for a 5.56 barrel?

Manufacturer Answer
A
Answered by Charles Shi, Manufacturer from CA, United States, on February 26, 2025

Yes, it works.

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Q
JCard, member, from OR, United States, asked on March 14, 2022

If my gas block is .625, will this still work for installing a barrel nut and flash hider?

Expert Answer
A
Answered by Hunter, Gear Expert, from OH, United States, on April 22, 2022

The Presma AR-15 .223 Barrel Vise Block Rod w/ Torque Block could still be used for installing a barrel nut even if you do not use a .750 gas block.

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Q
Neal Wadley II, member, from TX, United States, asked on October 08, 2021

Can I use it with my 5.56 also?

Expert Answer
A
Answered by Patrick, Gear Expert, from IL, United States, on November 18, 2021

Yes, this will work for 556 as well.

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Q
Puts, member, from IL, United States, asked on September 08, 2021

Where is it made? What material is it made of? Aluminum?

A
Answered by OhYeah, member, from TN, United States, on September 09, 2021

I found the information below by reading the product information sectection. For more information, Presma has their own website. My quick look at their site also said it take 70+ ft/lbs of torque. That should cover most installations.

Specifications for Presma AR-15 .223 Barrel Vise Block Rod w/ Torque Block for .750 Barrels:
Finish: Anodized
Fabric/Material: 7075-T6 Aluminum, 6061-T6 Aluminum
Quantity: 1
Caliber: .223 Caliber
Gun Model: AR-15
Gun Type: Rifle
Length: 11 in

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