Davidson Defense Nine Realms 5-inch 1:10 9MM AR-9 Freefloat M-Lok Handguard Pistol Upper Build Kit

Nine Realms 5 Inch AR-9 9mm Pistol Upper Build Kit with BC-9 Barrel and 4 Inch Free Float M-LOK Handguard

The Nine Realms AR-9 Pistol Upper Build Kit pairs a black 6061 aluminum pistol caliber AR-15 upper receiver with the BC-9 5 inch PCC barrel in 9mm and a 4 inch black free float M-LOK handguard with a full length Picatinny top rail. The BC-9 barrel has a parkerized finish, a slim profile, a 1 in 10 twist rate, and a half inch x 36 thread pitch, and the upper uses a direct blowback system. A 9mm A2 birdcage flash hider and a black crush washer round out the muzzle end. BCG and charging handle are not included.

Key Features

• Pistol caliber AR-15 upper receiver, 6061 aluminum, black
• BC-9 5 inch PCC barrel
• Parkerized finish, slim profile
• 1 in 10 twist rate
• Half inch x 36 thread pitch
• 4 inch free float M-LOK handguard, black
• Full length Picatinny top rail, no anti-rotation tabs
• 9mm A2 birdcage flash hider, half inch x 36
• Half inch black crush washer
• 9mm, AR-15 pistol caliber carbine pattern
• BCG and charging handle not included

Perfect For

• AR-9 pistol builders who want an ultra short upper with the barrel and handguard together in one purchase
• Builders who already have a 9mm bolt carrier group and charging handle on hand
• Shooters who want the most compact 9mm AR pistol setup

Pistol Caliber Upper Receiver

The upper receiver is a 6061 aluminum pistol caliber AR-15 receiver in black. It is made for AR-15 pistol caliber carbine pattern builds. The receiver is the foundation of the upper side of this kit. It pairs with the 4 inch M-LOK handguard and its full length top rail.

BC-9 5 Inch PCC Barrel

The BC-9 is a 5 inch 9mm PCC barrel with a parkerized finish. It uses a slim profile and a 1 in 10 twist rate. The muzzle uses a half inch x 36 thread pitch, a common thread for 9mm AR barrels. The 5 inch length keeps the build extremely compact.

4 Inch M-LOK Handguard and 9mm Flash Hider

The handguard is a 4 inch black free float M-LOK design with a full length Picatinny top rail. It does not use anti-rotation tabs. A 9mm A2 birdcage flash hider threaded half inch x 36 is included along with a half inch black crush washer. These parts cover the front end and muzzle hardware of the kit.

Follow safe handling and manufacturer instructions.

Ensure compliance with all applicable federal, state, and local laws.

BCG and charging handle are not included.

Verify compatibility with your lower receiver, 9mm bolt carrier group, and magazines before use.

Inspect all components before use.