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

by jv, Verified Owner from TX, United States Written on April 14, 2020
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.
Pros:
  • Gas lengths for barrel lengths unique
Cons:
  • 10.5" barrel is actually 11.25"
Would recommend: Yes
2 of 2 found the following review helpful.
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