[ImJustAnotherOkie]

The thickness of the barrel is the AR10 (.308) giveaway.

[DCBryan1]

The thickness of the barrel is the AR10 (.308) giveaway.

And your ignorance of firearms is a dead giveaway also.

Its .223/5.56mm. Surefire doesn't make an AR 10 60 or 90 round box magazine. That's a standard heavy free floating barrel. Stop making stuff up.

[Trailerpark Badass]

No, that is an AR15, with a 100rd Surefire 223/5.56 magazine.