what would happen if i did this????

[NugginFutz]

i do have a agb just sitting around. whats the best way to adjust it?? i have never used one

does it get over gassed by going to a low mass carrier?

What can happen is that your cyclic rate goes up, which could result in the carrier overrunning the magazine spring. Basically, you might experience fail to feeds or fail to lock on empty.

By reducing the gas pressure, you lessen the gas impulse felt by the carrier, thus slowing it back down.