Hm... I think I know how to make anti-chop bolts, but that requires drills and mills that I don't have access to.
Buy a force-feed loader like an egg or halo if you don't want to chop.
Hm... running at lower pressure could quiet your gun down. Barrels have a lot to do with noise as well.
SRT E-Force #08330: The Gatfish
-Air America Apocalypse 68/45
-Dye Stainless Steel
-Viewloader EvLution II with Z-board
-Check-it Sure Fit Feedneck
-Dust Black CP Rail
...And yes, Aluminum is for pussies.
I'm like a tiger in a zoo.