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.
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.
You may want to hold off on the staking until you make sure your rifle runs properly. Sucks to undo the work you did when you are a 1/2 hole off. Of course I would not be speaking from experience
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.
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.
Geissele Automatics will be releasing the Super Gas Block soon after we return from SHOT that has 2 set screws and can be pinned. It is listed on our website under Armorer’s Tools.
I asked about any link between Vltor and the BCM comp in the announcement thread. Military Moron replied back and said it was NOT a joint BCM / Vltor project. I’m assuming it was designed in house by BCM, maybe part of their new skunk works / R&D division. With Eric joining the BCM team, I expect that we will see a lot more coming from BCM in the future.
