Builder Sets

You really are doing yourself a disservice if you are building an AR 9 and you mix manufacturers.  AR 9 are very tough to build. The problem is there is no standard to the AR 9 like there is for the AR 15.  There is no accepted agreement on what an AR 9 is. There is no mil-spec for what an AR 9 is.  We match our AR 9 Upper Receiver, Lower Receivers and Hand Guards to ensure correct fit. Our Receiver Sets come with black anodize finish or can be configured with Cerakote option.