AR9 Barrel 4.5″ 9MM

$169.99 $109.99

Compatible with ALL Brands of 9mm AR lowers (Both Glock AND Colt Pattern), 100% Made in USA

Note: 9mm AR pistols and rifles operate on a blowback system, not direct impingement, therefore gas blocks and gas tubes are not necessary.

In stock


  • Chrome Lined Chamber
  • Color: Nitrided Black
  • Thread Pitch: 1/2″x36
  • Twist Rate: 1:10
  • Chamber: 9mm
  • System: Blow Back
  • Barrel Length: 4.5″