Need help selecting gas block.

**!Nvasi0n** · 01-13-13, 18:07

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** · 01-13-13, 18:32

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** · 01-13-13, 18:36

Never mind*** travis edited while I was posting

**!Nvasi0n** · 01-13-13, 18:42

Thanks Travis!

**!Nvasi0n** · 01-13-13, 18:44

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

**AKDoug** · 01-13-13, 18:50

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.