I put this JP Low mass/adj gas build together and my first time out I was faster than with my BCM but not by much.

I realized I was gonna have to let my mind work faster and let the gun do what it was designed to do.

My buddy challenged me to run the VTAC Half & Half from the 20 yard line...all 3 strings of fire.

So I ran 3 strings of 10 rounds from 20 yards and this is what it looked like:

Full JP rifle? Trigger and muzzle device?

Stretch 16 barrel since I already had it on hand.
JP receivers, handguard, gas block, lmos carrier, and SCS.

Geiselle SD3G and JP 2 port brake.