Armory Dynamics AD-9 9MM M4 Upper Receiver Assembly with 11 Inch Barrel and 10 Inch MLOK Handguard
Ready to drop in a 9mm Bolt Carrier Group, Charging Handle.
Chamber is polished during the assembly process and test fired for QA.
- Armory Dynamics AD-9 M4 Flattop Upper Receiver
- Dust Cover
- Forward Assist*
- Carbine Handguard with Heat Shield
- 11" 9MM AR 15 Barrel
- 4150 Chrome Moly Vanadium
- Profile: Government
- Finish: Nitride QPQ
- Gas System: Blowback
- Twist: 1/10
- Radial Cut Chamber
- Muzzle 1/2x28 thread
- A2 Style Muzzle Device
- Assembly Length: 19-1/8 Inch
- Assembly Weight: 2 lbs 7 ounce
*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.