AR-9 16" Side Charging LRBHO Complete Upper Assembly with BCG – Glock Compatible – 9mm

AR-9 16" Upper: Specs

The AR-9 16" Side Charging LRBHO Complete Upper Assembly is the perfect choice for building your next 9MM AR-9 rifle. This upper assembly features a non-reciprocating side charging billet upper receiver with Last Round Bolt Hold Open (LRBHO) for reliable performance. Specifically designed to work with Glock Mag AR-9/40/45 components, it is the ideal choice for your Glock-compatible AR-9 build.

Key Features:

• Barrel: The 16" 9mm match grade barrel is made from 4150 chrome moly vanadium steel, and finished with black nitride for durability and corrosion resistance. The barrel has a 1:10 twist rate, making it ideal for accurate, high-performance shooting. With a 1/2x36 muzzle thread, it can easily accommodate a variety of muzzle devices. This upper comes finished with a Mini Tanker muzzle brake to reduce recoil and muzzle rise.

• Side Charging Upper Receiver: Constructed from 6061 billet aluminum, this receiver is matte black hard-coat anodized for superior corrosion resistance and durability. The non-reciprocating side charging handle provides a more ergonomic option for charging your rifle. It is fully compatible with Glock Mag AR-9/40/45 components and other aftermarket parts, ensuring easy customization. The receiver also features an adjustable tension slide lock and a rear dust cover trap door that seals shut when mated with a lower.

• Gas System: Built with a blowback gas system, this upper assembly ensures smooth operation and reliable cycling with 9mm rounds.

• Handguard: The 15" lightweight free-floating M-LOK rail offers excellent space for mounting accessories. Made from aircraft-grade aluminum and finished with black hard-coat anodizing, this handguard is both rugged and easy to handle.

• Bolt Carrier Group (BCG): This upper includes a 9MM ramped BCG, precision milled from US-made 8620 steel with a mag phosphate finish. The BCG is designed for Glock-style MA-9 lower receivers and features an M-16 cut, allowing compatibility with transferable full-auto MGs or other legal machine guns (all BATFE rules apply).

• Compliance: This upper is California (CA) and New York (NY) compliant, making it a great option for shooters in those states.

• Made in the USA: Manufactured with the highest quality standards and materials, this upper assembly is proudly made in the USA by Moriarti Armaments.

Please Note: Variations in rail designs may occur based on stock availability, but the product will maintain the same high-quality specifications. Images may not be an exact representation of the product. Uppers are on a monthly manufacturing schedule. Anticipate an approximate 4 week lead time for shipping.

FAQ

What lower does it fit?

A dedicated pistol-caliber AR lower that takes Glock-style 9mm magazines. A standard AR-15 lower with 5.56 magazines will not feed it.

How does it operate?

It is a direct blowback pistol-caliber design with no gas tube or gas block, so a heavy PCC buffer is used for reliable cycling.

Does it have last round bolt hold open?

Yes. It has LRBHO, so the bolt locks back after the last round when used with an LRBHO-compatible lower.

What is a non-reciprocating side charger?

The charging handle is on the side of the upper and does not move while firing, so you can charge it without breaking your grip.

Is a lower receiver included?

No. This is an upper assembly only; the lower receiver and magazine are sold separately.

Related: AR-9 upper assemblies · pistol caliber carbines