Need help selecting gas block.

[!Nvasi0n]

Hey guys, quick question here. I ordered this barrel from BCM last wee...

http://www.bravocompanyusa.com/BCM-B...d-14%20bfh.htm

The problem is, I want to order a gas block and tube, an I don't see a spec anywhere! Can someone help me out and tell me what diameter Gas block I'll need?

Assuming BCM only has two size gas blocks, I'd say its 50/50, but I still want to get it right.

Instinct tells me it's the small .625" being government profile and all.

If this is something that's been asked before I apologize.

[Travis B]

You'll need a .750" lo pro gas block and midlength gas tube. I have a block from bcm and it does the job.

Most importantly get the gas block pinned. You'll thank me later.

[AKDoug]

Never mind*** travis edited while I was posting

[Travis B]

Never mind*** travis edited while I was posting

My mind was in a few different places. Corrected.

[!Nvasi0n]

Thanks Travis!

[!Nvasi0n]

Will the set screw come lose even with red loc-tite??? I can pin it if I need too...

[AKDoug]

Pinned is better, but red locktite on a BCM gasblock with a dimpled barrel is pretty damn good. BCM uses set screws with a knurled tip on them to dig into the barrel.

[jaxman7]

Pinned is better, but red locktite on a BCM gasblock with a dimpled barrel is pretty damn good. BCM uses set screws with a knurled tip on them to dig into the barrel.

Anyone know if Vltor's GB has the same type of set screw tips as the BCM version? I should know this but don't. I have one mounted now. Will be taking it off soon.

-Jax

[AKDoug]

It would be good to know. The BCM and Vltor low profile gas blocks are extremely similar (minus the cuts in the Vltor block). Knowing the relationship BCM and Vltor has, I wouldn't doubt they are the same gas block.

[jaxman7]

It would be good to know. The BCM and Vltor low profile gas blocks are extremely similar (minus the cuts in the Vltor block). Knowing the relationship BCM and Vltor has, I wouldn't doubt they are the same gas block.

Good point and agree with the Vltor/BCM relationship.

Anyone know who actually designed (or was on the design team) for BCM's Comp? Not trying to start anything but everytime I look at mine it reminds me of Vltor's flash hider.

-Jax