Ar overgassing

[Todd00000]

@constructor

You can if you have tools, remove the gas block.
Tap the hole between the barrel and gas tube, then install a set screw in the space between the barrel and gas tube. drill a .0625 or 1/16" hole through the set screw. A reducing sleeve like that will give you more consistant results than a adjustable gas block with a set screw coming in from the side.
Heavier springs and buffers also help but it is still over gassed and starting to move the carrier too early which can result in bad accuracy.
You can shoot you rifle in the dark, if flames come out of the ejection port then the carrier is moving rearward while the bullet is still in the bore and some pressure is exiting through the chamber. Some rifles are severely over gassed.

Thanks I’ll check that out also, but I’d buy a new barrel before going to that trouble. I’m not too worried about it, I have a 6920 and a few lowers for future quality builds. I just like knowing how and why things work.