Details
Davidson Defense Ultra Instinct 7.5-Inch AR-15 9mm Pistol Complete Upper
The Ultra Instinct Complete Upper is built around a 7.5-inch 9mm (9x19) barrel machined from 4150 chrome moly vanadium steel in an HBAR heavy profile with a Phosphate finish. It is paired with a Davidson Defense 6061 billet upper receiver and a black quad-rail handguard, and it ships with a 9mm Nitride bolt carrier group and a mil-spec quality M4 charging handle. The builder receives the core working components of an AR-9 upper in one package. The heavy profile adds a sturdy feel up front, and the 1:10 twist suits a wide range of 9mm bullet weights.
Key Features
- 7.5-inch HBAR profile barrel, 4150 CrMoV steel, Phosphate finish, 1:10 twist, 9mm (9x19)
- 1/2x36 muzzle threads
- Davidson Defense 9mm billet upper receiver, 6061-T6 aluminum, Type III hard coat anodized
- Quad-rail handguard, aircraft-grade aluminum, black
- 9mm A2 birdcage flash hider on 1/2x36 threads
- 9mm Nitride bolt carrier group with external extractor, accepts Glock and Colt magazines
- Mil-spec quality AR-15 M4 charging handle included
Barrel and Muzzle
The 7.5-inch barrel is machined from 4150 chrome moly vanadium steel in an HBAR profile and finished in Phosphate, a matte, corrosion-resistant treatment that gives it a clean, uniform look. Its 1:10 twist rate is suited to a wide range of 9mm bullet weights. The muzzle is threaded 1/2x36, the common thread pitch for 9mm devices, and carries the included 9mm A2 birdcage flash hider.
Upper Receiver and Handguard
The upper receiver is a Davidson Defense 9mm billet unit machined from 6061-T6 aluminum and finished in Type III hard coat anodizing, a hard, wear-resistant surface that resists scratches and corrosion. It is paired with a black quad-rail handguard machined from aircraft-grade aluminum. The quad-rail layout puts rail surfaces on multiple sides, giving the builder mounting room for lights, lasers, grips, and other accessories.
Bolt Carrier Group and Charging Handle
The included 9mm Nitride bolt carrier group uses an external extractor and accepts both Glock and Colt pattern magazines. Nitride adds hardness and corrosion resistance and helps the carrier stand up to repeated cycling. It is paired with a mil-spec quality AR-15 M4 charging handle, completing the upper so it is ready to be matched with a compatible lower receiver.
Compatibility
This upper is built for AR-9 platforms chambered in 9mm (9x19). Handguard length, free-float or drop-in style, ejection port door and forward assist configuration, bolt carrier material, and the lower receiver magazine well pattern needed to match the Glock or Colt magazine style were not supplied with this listing and should be confirmed before purchase.
Follow all manufacturer instructions and safe handling practices.
Ensure compliance with all applicable federal, state, and local laws.
