Moriarti AR-9 9MM 8.3" Side Charging Complete Upper Assembly | BCG | LRBHO

Uppers

Moriarti AR-9 9MM 8.3" Side Charging Upper Assembly | BCG | LRBHO | MLOK

The Moriarti AR-9 8.3" Side Charging Pistol Upper Assembly is engineered for performance, reliability, and compact power. Built on a non-reciprocating side charging billet upper receiver and integrated Last Round Bolt Hold Open (LRBHO) system, this upper is ideal for Glock-mag compatible builds and ready for action.

Perfect for custom AR-9 pistol builds, this upper delivers a clean cycling experience thanks to its blowback operation, a match-grade 8.3” 9MM barrel, and a 7.5” slim M-LOK handguard for lightweight modularity.

Each upper comes fully assembled and test-fired, ensuring flawless fitment and function for your next PDW or tactical pistol setup. Rails may vary slightly depending on stock availability, with no compromise on quality.

Key Specifications:

• Caliber: 9MM

• Barrel: 8.3", 4150 CMV, black nitride, straight profile, 1:10 twist

• Thread Pitch: 1/2x36 TPI

• Muzzle Device: A2 Flash Hider

• Gas System: Blowback

• Upper Receiver: 6061 billet aluminum, non-reciprocating side charging, Mil-Spec anodized, rear dust cover trap door

• LRBHO: Integrated Last Round Bolt Hold Open

• Handguard: 7.5" Slim M-LOK free-float, aircraft-grade aluminum

• Bolt Carrier Group: 8620 Steel, mag phosphate finish, M-16 cut, Glock & Colt compatible

• Compatibility: Glock mag AR-9, MA-9 lowers

• Charging Handle: Side charging (included)

• Assembly: Fully assembled and test-fired

• Complete the build with a Moriarti MA-9 Glock Mag Billet Lower Receiver