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Make an adjustable gas block from a standard one?

Re: Make an adjustable gas block from a standard one?

someone did that to a standard FSB a while back. drilled and tapped and used a hex head set screw in it.

AdjustableFSB004.jpg
 
Re: Make an adjustable gas block from a standard one?

Yes. I did a similar mod to the stock gas block on my AR10-T. Its a little different than the one AXEMAN posted as the block on the AR10-T couldn't be drilled from the side. I removed the gas block and had to drill straight up through the gas port from the underside. This meant I had to drill through the gas tube so I used a small diameter set screw to retain as much mechanical integrity of the tube as possible. I used blue loctite to hold the position but still allow adjustment in the future if necessary. I must say I'm pretty happy with it. Its been about 6 months now and no problems. The ability to regulate the gas pressure on my AR10-T really tamed the recoil impulse.