"the rest of the build was mostly JP components"
I recently built an AR using a great deal of JP hardware. I started out with a Tactical Innovations lower. Then I mated it to an Aero Precision upper. About that time, I became aware of JP Enterprises, and the rest of the build was mostly JP components, including the 18" barrel, 15.5" rail, thermal dissipater and gas block / tube. I finally finished the build and took it to the range. I spent some time breaking in the barrel. Once I had finished the break-in, I had a blast, so I thought I'd show you the finished rifle.