Moriarti AR-9 9MM 4.5" Pistol Upper Assembly with BCG and Charging Handle - Slick, Non-LRBHO

Uppers

Moriarti AR-9 9MM 4.5" Pistol Upper Assembly with BCG and Charging Handle - Slick, Non-LRBHO

The AR-9 9mm 4.5" Pistol Upper Assembly delivers outstanding performance and versatility in a compact design. This upper is a perfect choice for those looking to build an AR-style pistol in 9mm for home defense, range shooting, or simply as a unique addition to their collection. With its slick side upper, the setup is streamlined and efficient, eliminating unnecessary components for a clean, reliable platform.

The 4.5" barrel is made from 4150 chrome moly vanadium steel, finished in black nitride for durability and resistance to corrosion. With a 1:10 twist rate, it’s designed for consistent accuracy with 9mm ammunition. The barrel is topped with an A2 flash hider to reduce muzzle flash, making it ideal for quick follow-up shots in any lighting conditions. The upper assembly also features a free-floating 4" slim M-LOK rail handguard, allowing for customization with your favorite accessories.

This non-LRBHO upper setup is built on a flat-top AR-15 receiver with a slick side design, which means no forward assist, reducing the complexity and weight. It’s compatible with all standard AR-9 components and mil-spec AR-15 parts, making it easy to integrate into your existing AR platform. The 8620 steel bolt carrier group (BCG) ensures smooth cycling, and the mil-spec AR-15 charging handle provides easy manipulation.

Whether you're setting up for home defense, enjoying time at the range, or expanding your AR platform collection, this AR-9 9mm pistol upper offers a solid foundation for your build.

Specifications:

• Barrel Length: 4.5" 9mm

• Barrel Profile: Straight

• Barrel Steel: 4150 Chrome Moly Vanadium

• Barrel Finish: Nitride

• Muzzle Thread: 1/2-36

• Chamber: 9mm (9x19)

• Twist Rate: 1 in 10"

• Barrel Extension: Blowback 9mm

• Muzzle Device: A2 Flash Hider

• Receiver: AR-15 Flat Top Upper, Slick Side (no forward assist, includes dust cover)

• Handguard: 4" Super Slim M-LOK Free Float Rail

• Bolt: 9mm, 8620 Steel

• Charging Handle: Mil-Spec AR-15 Charging Handle (included)

Note: Images may not represent the exact product.