Got a Remington 870 super mag barrel 12 ga barrel need it cut and threaded for rem chokes. Bead or sights installed. Going to be a turkey setup not decided what I want to do for sights yet. Got a little over .910 O.D. where I want the barrel cut,so I should be fine for Remchoke been told anywhere from .840 to .900 O.D. is needed to to go Remchoke. Length is short as possible and be legal. So in front of whatever rib support gives me 18 plus. Not looking to spend a ton of money but want a decent job that I can have back before mid april. Finally don't suggest carlsons choke tubes. Thanks.