01-26-2023, 10:38 PM
imaguy3 Wrote:compressed air also works to check gas block alignment. I use small piece of hose attached to my air gun... slip it over the gas tube inside the receiver and give it a squirt of air, if you feel air come out of the barrel then you're gtg.
Not necessarily, the ports can be partially offset-blocked creating a smaller gas port diameter and still allow compressed air through ..