Need some help, i am having a linear comp made and i need to know the barrel OD so the comp can be made to match the barrel when its put on the barrel. So if someone could help me out that would be great, I just need a measurement right behind the factory brake on the barrel. (id do it myself but i am in Afghanistan and dont have access to my upper)
it is a Bushmaster AR-15 A3 Flat-Top Upper Assembly 450 Bushmaster 1 in 24" Twist 16" Barrel Chrome Moly Matte with Free Float Handguard,"Izzy" Muzzle Brake.
Got it from MidwayUSA a few years ago.
thanks