Barrel question for the guru's:14.5 project

[lazyengineer]

Well... darn. My Faxon 16" Gunner came in. Barrel looks well designed, but the outer diameter at 14.5", is the same as the OD of the muzzle end threads. Meaning that while I could cut it to 14.5" and thread it, the muzzle devide won't have a shoulder to butt up agains. While I can try to force it, in the end, this probably isn't the best way to go - too many potential problems if starting with a Faxon Gunner. (malonited is a bitch to cut through for machining, muzzle device won't butt up right, gas port is midlength, which might be too long on a Grendel at 14.5, not sure.

I guess I'll just toss the barrel on a shelf as a spare; which isn't the end of the world, as getting barrels at all isn't easy these days!