Hello I'm new to the forum. I did some searching and didn't seem to find much info, I'm looking into submitting a form 1 on my 580 ranch Rifle. I was hoping somebody here has don't the same. I was probably going to cut the barrel to 12 or 13 inches, then threading it for my Halo or omega suppressors. I'm concerned about over gassing, and how to correct the problem. I don't really like the adjustable gas blocks currently offered so what size bushing should I go with? Before I submit my form 1 I just want to make sure it will be worth it. Any suggestions are appreciated.