Moriarti AR-9 9MM 4.5" Diamond Cut 4" M-LOK Upper Assembly – Multiport, Charging Handle

9mm Micro Upper: Specs & Features

The Moriarti AR-9 9mm 4.5 Diamond Cut 4 M-Lok Upper Assembly with a multiport feature, including an AR-15 Milspec Charging Handle, is a specialized upper receiver assembly designed for AR-style pistol-caliber carbines, particularly those chambered in 9mm. This specific model showcases several advanced and aesthetically pleasing features that appeal to both recreational shooters and those seeking a high-quality upper for home defense or competition shooting.

Key features:

9mm Chambering: This upper assembly is chambered for 9mm cartridges, making it a versatile option for affordable shooting, due to the relatively low cost of 9mm ammo compared to other centerfire pistol rounds and rifle cartridges. 9mm ARs are popular for range shooting, home defense, and in certain competitive shooting disciplines.

AR-15 Upper Receiver: A reliable upper receiver is crucial for any exceptional AR, and Moriarti's upper receivers are unmatched in quality and durability, guaranteeing years of steadfast performance. The M4 flat-top receiver is constructed from 7075-T6 forged aluminum, and features a MIL-SPEC type III hard coat anodized finish that ensures unparalleled function throughout its lifetime. When it comes to building a dependable AR, a sturdy foundation is key, and this receiver provides the reassurance needed to trust in the function of your AR-15 when it matters most.

4.5 Diamond Cut Mlok: The relatively short 4.5-inch barrel is indicative of a compact design, which is ideal for close-quarters maneuverability. The diamond cut likely refers to the machining or finishing process used on the barrel, which could enhance aesthetics and potentially contribute to improved cooling and performance under rapid fire conditions.

Multiport Muzzle Brake: This muzzle device is designed to reduce muzzle rise and recoil. Muzzle devices like compensators and brakes with multiple ports are effective in directing gases to manage recoil and improve control during rapid fire or competitive shooting scenarios.

Includes AR-15 Milspec Charging Handle: The upper assembly is ready for use out of the box and is compatible with standard AR-15 lower receivers. Milspec refers to military specifications.

Specs:

Manufacturer: Moriarti Armaments

Cartridge: 9mm Luger

Barrel Length: 4.5 in

Barrel Twist Rate: 1-10

Upper Receiver: AR-15 aluminum forging, complete with dust cover and forward assist

Muzzle Device: Multiport

Finish: Black

Attachment/Mount Type: Mlok Gun

Make: AR Platform

Additional Features: 4 inch M-LOK Diamond Cut Rail w/nut and screws

Bolt Carrier Group: Not Included

Charging Handle Included: AR-15 Milspec

NOTE: Images may not be an exact representation of the product.

FAQ

Is a lower receiver included?

No. This is an upper assembly only; the lower receiver, magazine and sights are not included.

What lower does it fit?

A dedicated pistol-caliber AR lower, such as a Glock-pattern lower using 9mm Glock-style magazines. A standard AR-15 lower with 5.56 magazines will not feed it.

How does it operate?

It is a direct blowback system, so it has no gas tube. A heavy PCC buffer is used for reliable cycling.

Related: 9mm Micro ARP · all Micro ARP pistols and uppers