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.