9mm AR BRT 9mm AR-15 AR15, M16, M4 Made in USABRT 4.0" SUBGUN 9mm AR BarrelBRT 4.0" SUBGUN 9mm AR Barrel$105.00BRT 5.5" SUBGUN 9mm AR BarrelBRT 5.5" SUBGUN 9mm AR Barrel$115.00BRT 8.5" SUBGUN 9mm AR BarrelBRT 8.5" SUBGUN 9mm AR Barrel$125.00BRT SUBGUN 9MM Bolt Carrier GroupBRT SUBGUN 9MM Bolt Carrier Group$149.00
