RevolverGuy75
Plinker
Did you end up picking a barrel? I just built an AR pistol with a Stoner 7.5” 223 Wylde. Running only 223 in it so far, about a hundred rounds in and it’s accurate, no issues to note thus far.Looking at the 5.56 or .223 Wylde options for an 18" upper. Or if there is another option that isn't going to break the bank...