Wolfpack Armory AR-45, AR-10mm Complete Lower Receiver Assembly, SBR Ready, Glock Magazine Compatible

Wolfpack Complete Lower: Specs

Build your next pistol-caliber AR with the Wolfpack Armory AR-45 / AR-10MM Complete Lower Receiver Assembly. Precision machined from billet aluminum, this SBR-ready lower is engineered specifically for .45 ACP and 10mm Auto builds while maintaining compatibility with many Mil-Spec AR-15 components.

Designed for blowback-operated platforms, this complete lower accepts factory Glock-pattern .45 ACP and 10mm magazines, making it a versatile foundation for custom AR pistols, carbines, and short-barreled rifle projects where legally applicable.

The receiver includes an integrated ejector, pre-installed magazine catch assembly, competition flared magwell, Mil-Spec carbine buffer tube, 8 oz heavy buffer, and AR-15 carbine recoil spring, providing builders with a properly configured recoil system for dependable cycling.

Whether you're assembling a dedicated AR-45, AR-10MM, or custom PCC, the Wolfpack complete lower delivers reliability, durability, and premium performance.

Features

Receiver

• Precision Billet Aluminum Construction
• Hardcoat Black Anodized Finish
• SBR-Ready Configuration
• Blowback-Optimized Design
• M16 Deep Shelf Trigger Pocket

Magazine Compatibility

• Accepts Factory Glock .45 ACP Magazines
• Accepts Factory Glock 20 Pattern 10mm Magazines
• Competition Flared Magwell
• Magazine Catch Assembly Installed

Complete Lower Includes

• Billet Lower Receiver
• Integrated Ejector
• Magazine Catch Installed
• Mil-Spec Carbine Buffer Tube
• 8 oz Heavy Buffer
• AR-15 Carbine Buffer Spring

Compatibility

• Mil-Spec AR-15 Triggers
• AR-15 Pistol Grips
• Mil-Spec Buffer Tubes
• Blowback AR-45 & AR-10MM Upper Assemblies

Why Choose the Wolfpack AR-45 / AR-10MM Lower?

The Wolfpack complete lower simplifies your build by including many of the essential components already installed and tuned for pistol-caliber blowback operation.

Benefits include:

• Supports both .45 ACP and 10mm Auto
• Uses factory Glock-pattern magazines
• Includes heavy 8 oz buffer
• Includes AR-15 carbine recoil spring
• Competition flared magwell
• Billet aluminum construction
• SBR-ready design
• USA-quality manufacturing

Blowback-Optimized Recoil System

Unlike many standard AR lowers, this assembly includes an 8 oz heavy buffer and AR-15 carbine spring, helping manage bolt velocity and improve reliability in .45 ACP and 10mm Auto blowback platforms.

Important Information

• Designed for blowback-operated AR platforms
• Accepts factory Glock-pattern .45 ACP and 10mm Auto magazines
• Compatible with Mil-Spec AR-15 fire control groups
• Product images may not exactly represent the final configuration

Frequently Asked Questions

What calibers does this lower support?

This complete lower is designed for .45 ACP and 10mm Auto blowback AR platforms.

What magazines are compatible?

It accepts factory Glock .45 ACP magazines and factory Glock 20 pattern 10mm magazines.

Is the magazine catch already installed?

Yes. The magazine catch assembly is included and factory installed.

Does the lower include an ejector?

Yes. The receiver features an integrated ejector, eliminating the need for a separate installation.

Is this lower designed for blowback operation?

Yes. It is specifically engineered for blowback-operated AR-45 and AR-10MM platforms.

What recoil system is included?

The lower includes a Mil-Spec carbine buffer tube, 8 oz heavy buffer, and an AR-15 carbine recoil spring, providing a recoil system suitable for pistol-caliber blowback builds.

What trigger can I install?

The receiver accepts Mil-Spec AR-15 fire control groups and features an M16 deep shelf trigger pocket.

What does SBR-ready mean?

The receiver is configured to support short-barreled rifle projects where legally permitted. Assembly into an NFA-regulated firearm must comply with all applicable federal, state, and local laws.

Is this compatible with standard AR-15 grips?

Yes. It accepts standard AR-15 pistol grips.

Who is this lower best suited for?

This lower is ideal for builders assembling a custom AR-45, 10mm AR, or pistol-caliber carbine who want Glock magazine compatibility, a properly tuned blowback recoil system, and premium billet construction.Additional Information:

• FFL Requirement: This item must be shipped to a Federal Firearms License (FFL) holder. Please have your FFL provider email a signed copy of their license to [email protected]. Your order cannot be processed until we have this on file. Be sure your FFL includes your invoice number for reference.

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 and 10mm 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