It isn't the lower that makes an AR, excluding the trigger. If the parts work, then there really is not difference.
The Upper is what makes or brakes an AR.
I forgot who make my lower for my Service Rifle, but I know the trigger cost twice as much as the complete lower.
It carries a White Oak Service Rifle upper and its a shooter.
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Kraig Stuart
CPT USAR Ret
USAMU Sniper School
Distinguished Rifle Badge 1071
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