Aero Precision M4E1 Pistol Complete Lower Receiver w/ MOE Grip & SBA3 Brace – Black/FDE
The Aero Precision M4E1 Pistol Complete Lower Receiver w/ MOE Grip & SBA3 Brace – Black/FDE is a premium, ready-to-use lower assembly designed for AR-15 pistol builds. Built around the robust M4E1 Enhanced Lower Receiver, this complete lower comes fully assembled and features carefully selected components to maximize function, reliability, and ergonomics—all in a stylish black and flat dark earth two-tone finish.
At the core of this lower is Aero Precision’s M4E1 Enhanced Lower Receiver. Forged from 7075-T6 aluminum, this receiver includes modern enhancements like a threaded bolt catch, integrated trigger guard, and rear takedown pin detent set screw for simplified maintenance and assembly. The hardcoat anodized FDE finish adds corrosion resistance and a clean appearance.
Paired with the receiver is a Magpul MOE pistol grip in black, known for its durable polymer construction, non-slip texturing, and internal storage core. Comfortably angled for pistol builds, it delivers a secure grip in any shooting position.
Completing the setup is the SBA3 Pistol Stabilizing Brace, mounted to a mil-spec buffer tube using Aero Precision’s Enhanced Pistol Buffer Kit. With five-position adjustability and an ATF-compliant design, the SBA3 provides optimal stability without sacrificing compactness or maneuverability. Whether you’re upgrading an existing AR-15 pistol or starting a fresh build, this lower is a dependable and refined solution.
- M4E1 Enhanced Pistol Lower Receiver, 7075-T6 aluminum, FDE anodized finish
- Threaded bolt catch roll pin and integrated trigger guard
- Magpul MOE Grip (Black), ergonomic angle, internal storage compartment
- SBA3 Pistol Brace (Black), 5-position adjustable, ATF-compliant
- Aero Precision Enhanced Pistol Buffer Kit with mil-spec buffer tube, carbine spring, and standard buffer
- Mil-spec lower parts kit with high-quality components
- Compatible with standard AR-15 upper receivers
- Two-tone Black/FDE configuration
Product Information
| Finish | Anodized |
|---|---|
| Receiver Extension | Carbine |
| Manufacturer | Aero Precision |
| Compatibility | Standard AR15 components |
| Platform | AR15 |
| Color | Black, Flat Dark Earth |
| Material | 7075-T6 Aluminum |
| Buffer Weight | Standard |
| Series | M4E1 |
| Markings | "Cal Multi" |
| Made in USA | Yes |
We fully comply with all federal, state, and local laws regarding the sale of restricted products. We do not market or sell to prohibited jurisdictions, and any attempts to induce illegal activity, including by law enforcement or government agencies, will be rejected and may be reported. All orders are subject to legal verification, and those in violation will be canceled. By using this site, you confirm compliance with all applicable laws.
Important!
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Review our FFL Ordering Instructions HERE before placing your order.
- Prices do not include your dealer’s transfer fees.
- Not eligible for return after transferred into your possession via ATF Form 4473.
- There will be a 30% restocking fee on all controlled items returned because of failed background checks.
Federal law requires that you be 21 years of age or older to purchase a pistol, stripped receiver, or frame. If a frame or receiver can only be made into a long gun (rifle or shotgun), it is still a frame or receiver, not a handgun or long gun. However, they are still “firearms” by definition and are subject to the same GCA limitations as any other firearm. See Section 921(a)(3)(b). 18 U.S.C. Section 922(b)(1) makes it unlawful for a licensee to sell any firearm other than a shotgun or rifle to any person under the age of 21.
Arm or Ally is a stocking dealer for all Aero Precision, Faxon Firearms, Ballistic Advantage, HOLOSUN, Toolcraft, Elftmann Tactical, Timney, TriggerTech, HIPERFIRE and was named the #1 Overall E-Commerce Dealer for Aero Precision Products in 2020!
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