BRT OPTIMUM Barrels

[Biggy]

What are your thoughts on a good rail for the 9"?

I like these. They are lightweight , have a 1.900" inch long barrel nut, are easy to install and have a good handguard to barrel nut attachment method. Either handguard below would work fine with a 9" inch barrel.

https://slrrifleworks.com/index.php?...roduct_id=1217
https://slrrifleworks.com/index.php?...product_id=660

[snackgunner]

Clint how soon will we be able to order the suppressor gas drive BRT 11.5" OPTIMUM CQB Barrel??? It says sold out

[BC98]

KAC URX4 8”


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FWIW, the URX4 is an 8.5" rail. If you're planning to run a can on the gun, you may need to add a spacer behind the muzzle device. It's possible but VERY close to the end of the handguard.

[Clint]

Just received confirmation back from Surefire tech support:

The SOCOM 762 will fit on both 556 and 762 mounts, while the SOCOM 556 will only fit on 556 mounts.

Will a 556 SOCOM fit on a 762 SOCOM mount?

The 14” looks good. I just don’t want to have to buy a 7.62 can for the 11.5”

[Clint]

We had a few extra details to work out on the suppressor barrels.

They're up for order now.

Clint how soon will we be able to order the suppressor gas drive BRT 11.5" OPTIMUM CQB Barrel??? It says sold out

[ffhounddog]

What is the big difference between the 11.5s?

[gunnerblue]

FWIW, the URX4 is an 8.5" rail. If you're planning to run a can on the gun, you may need to add a spacer behind the muzzle device. It's possible but VERY close to the end of the handguard.

Its actual length is 8.75” per KAC’s website, making it even less of an option.

[snackgunner]

What is the big difference between the 11.5s?

The 11.5 suppresor barrel states in description:
BRT Suppressor barrels are designed to work best with 30 caliber suppressors using full pressure 5.56 ammunition and the following buffer systems: VLTOR A5H2, Rifle and Carbine H2.

The other 11.5 barrel doesnt have this in its desciption.

[BC98]

Its actual length is 8.75” per KAC’s website, making it even less of an option.

My URX4 rail measures just under 8.5"

[Clint]

Correct.

The suppressor version has an extra small gas port to support dedicated suppressed operation.

The 11.5 suppresor barrel states in description:
BRT Suppressor barrels are designed to work best with 30 caliber suppressors using full pressure 5.56 ammunition and the following buffer systems: VLTOR A5H2, Rifle and Carbine H2.

The other 11.5 barrel doesnt have this in its desciption.