Mossberg OEM 16" .223/5.56 AR Barrel

AIM has some of the 16" m4 style barrels in melonite finish .

this is the same as the coating on glock slides, several big name firearms firms use a similar process to coat the inside and outside.

i sort of wish i had got one of these back when JSE had um in 14.5"--

but i am "upper poor" right now--LOL