Good barrels with just a few caveats - FM Products Foxtrot Mike Premium 41V50 5.56 AR Barrel

So I purchased both barrels because I'm the type that likes to tinker with setups that people say can't be done. The 16" rifle barrel I used for a "dissipator" Colt 605 clone. I want all my rifles to run any ammo available so at the least I get them all to run steel cased 223 ammo since it tends to be lower pressured than 5.56 NATO. This definitely required some enlargement to the gas port which I was already expecting. With that, I love this barrel.

As for the 10.5" mid-length barrel, it's actually 11.25". Not that it's a terrible thing, they should just update the I still have yet to complete this upper build but I'm pretty sure I will still have to enlarge the gas port.