MA-45 Moriarti Pistol Billet Lower Receiver, Micro Buffer, Glock Style Mags

MA-45 Pistol Lower: Specs

MA-45 Moriarti Pistol Billet Lower Receiver with Micro Buffer / Glock Style Mags - Compatible with AR-45 Micro Uppers (Barrel length up to 5.5")

Manufacturer: Moriarti Armaments
Model: AR-45 Billet Lower Receiver
Type: Complete AR-45 Pistol Lower Receiver
Caliber: Multi (Compatible with .45ACP, 10mm, and other pistol calibers)
Magazine: Accepts any Glock® style large-frame pistol caliber magazines

Weight: 2.5 lbs

Features:

• Precision Machined: Milled from 7075-T6 aircraft grade billet aluminum for superior strength and durability, with a matte black hard-coat anodized finish per Mil 8625 Type 3 Class 2 for corrosion resistance.

• Compatible with Glock Style Mags: This Glock-style lower receiver accepts Glock®-style large-frame pistol magazines in .45ACP and 10mm.

• Micro Buffer System: Includes a factory-installed micro buffer and spring system designed to enhance performance with AR-45 micro uppers featuring 4" to 6" barrel lengths.

• Integrated Features for Customization: Machined to work with 45 and 60-degree short throw fire control selectors like the BAD_ASS ST 45 Lever for improved trigger performance and flexibility.

• Mil-Spec Lower Parts Kit (LPK): Comes fully assembled with standard AR-15 milspec lower parts, including a proprietary magazine catch assembly and ejector, ensuring reliable feeding and smooth mag swaps.

• Enhanced Adjustability: Features an upper tension screw and take-down pin spring with 4-40 set screw for a precise fit and to eliminate any “slop” between upper and lower receivers.

• Ergonomics and Durability: Includes an ambidextrous trigger finger rest with grooves, a large opening “winter” trigger guard, and threaded bolt catch pin for smoother operation.

• Versatility for Custom Builds: The multi-caliber marking allows this lower to work with a variety of AR-45 uppers, making it ideal for building your custom AR-45 pistol or carbine. Perfect for your AR-45 build with Glock magazines.

• Faster Setup: The lower comes pre-assembled, and it’s ready to pin to your upper and shoot once you have your upper assembly and stripped lower receiver (sold separately).

• Quality Manufacturing: Constructed with CNC precision, this lower receiver is built to exacting tolerances for consistent quality.

• FFL Transfer Required: This AR-45 lower receiver must ship to an FFL. Please have your FFL email a signed copy to [email protected] to expedite processing.

Important Notes:

• This AR-45 Billet Lower Receiver is designed specifically for Glock-style magazines and works well with AR-45 uppers in .45ACP calibers.
• FFL Transfer Required: Federal law requires an FFL transfer for this product. The order will not be processed until a signed FFL copy is received. Please have your dealer include your invoice number in the email.

Save Money and Build Your Own AR-45: Build your own AR-45 pistol or carbine with this complete billet lower receiver and create a firearm exactly how you want it configured.

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 .45 ACP 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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