Moriarti AR-9 Micro Pistol Lower Receiver – 7075 T6 Billet, Glock Style Magazine, Multi-Caliber

AR-9 Pistol Lower: Specs

The Moriarti AR-9 Pistol Lower Receiver is a precision-engineered lower for your AR-9 or pistol caliber carbine (PCC) build. Milled from 7075 T6 aircraft-grade billet aluminum, this receiver offers outstanding durability and performance for 9mm, .40 S&W, and .357 SIG calibers. Compatible with Glock-style magazines, it ensures reliable feeding and seamless integration with Mil-Spec AR platform parts.

This Multi-Cal lower receiver is designed to work with virtually any Mil-Spec Glock-style upper assemblies and includes all the essential parts, such as the bolt release, ejector, and mag catch. It also features Safety, Fire, and Full Auto markings on both sides for easy identification.

With a non-LRBHO (no Last Round Bolt Hold Open), this lower is ideal for building a reliable, high-performance AR-9 or PCC. The receiver is marked MultiCal, giving you the flexibility to choose from various calibers for your custom build.

Key Features:

• Milled from 7075 T6 aircraft-grade billet aluminum for strength and precision
• Compatible with Glock-style magazines in 9mm, .40 S&W, .357 SIG, and other small frame calibers
• Works with Mil-Spec AR platform parts (fire control group, AR pins, buffer tube, upper assemblies, and selector)
• Includes Bolt Release, Ejector, and Mag Catch for complete assembly
• Non-LRBHO (No Last Round Bolt Hold Open)
• Marked MultiCal, allowing versatile caliber options
• Safety, Fire, and Full Auto pictorial markings
• Ideal for use with Mil-Spec Glock-style upper assemblies

FFL Terms and Conditions:

• Federal law requires you to be 21 years or older to purchase a stripped receiver or frame.
• All firearms and receivers are subject to GCA limitations.
• Please be aware of your local laws and regulations before ordering.

FAQ

Does a lower receiver ship to an FFL?

Yes. The lower receiver is the serialized firearm part, so it ships to your local FFL dealer for transfer.

What magazines does it use?

Glock-pattern 9mm magazines.

Can I put a stock on an AR pistol?

Adding a shoulder stock to an AR pistol with a barrel under 16" makes it a short-barreled rifle under the NFA. Do it only in compliance with federal and state rules.

Related: complete PCC lowers · pistol caliber carbines

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