Armory Dynamics AD-9 9MM Upper Receiver Assembly with 4.5 Inch Barrel. M-Lok Handguard and Linear Compensator
The Armory Dynamics AD-9 9MM Upper Receiver assembly features a 7 Inch M-LOK Handguard, 4.5 Inch 9mm Barrel With a radial chamber. Ready to drop in a 9mm Bolt Carrier Group, Charging Handle of your choice.
Chamber is polished during the assembly process and test fired for QA.
- Armory Dynamics AD-9 M4 Flattop Upper Receiver
- Dust Cover
- Forward Assist*
- 7 Inch Free Float M-LOK Handguard
- 4.5" 9MM AR 15 Barrel, Modern Series
- 4150 Chrome Moly Vanadium
- Profile: Government
- Finish: Nitride QPQ
- Gas System: Blowback
- Twist: 1/10
- Radial Cut Chamber
- Muzzle 1/2x28 thread
- Linear Comp
- Assembly Length: Top of receiver to end if muzzle device: 15 Inch
- Assembly Weight: 1 Pound, 11 ounces
*Non functioning forward assist.
**You may use this barrel with a lower receiver that is a Registered SBR, Machine Gun, or Pistol. Possession of this barrel along with a Non-NFA lower receiver is Prohibited, except when installed on a Pistol configuration firearm.