Aero M4E1 Pro Complete Lower Receiver Moe Blk

The Aero Precision M4E1 Pro complete lower receiver brings true ambidextrous operation to your AR-15 build, letting you run controls from either shoulder without awkward hand gymnastics. This isn't just a stripped lower—it comes fully assembled with quality parts ready to pair with an upper receiver, making it an excellent choice for builders who want a fighting rifle that works for lefties and righties alike, or shooters who train both sides.

Aero engineered the M4E1 Pro platform with symmetrical bolt catch, magazine release, and safety levers, so you're not jerry-rigging controls or learning a compromised manual of arms. The included PRO Ambidextrous Safety, EZ Takedown/Pivot Pins, and Aero's Enhanced Buffer Tube with H Buffer keep things smooth and reliable. The Magpul MOE grip and MOE SL stock round out the kit with ergonomics and durability that work in the field.

Compatible with standard M4E1 and AR-15 components and magazines, the M4E1 Pro integrates into a clean, modular platform. Whether you're building a duty rifle, a competition gun, or just want the flexibility of true ambi controls, this lower receiver eliminates the guesswork and gets you running without modification.

Key Features

• Ambidextrous bolt catch, magazine release, and safety for left- or right-hand operation
• Includes PRO Ambidextrous Safety lever
• Complete assembly with Aero Enhanced Buffer Tube and H Buffer
• Magpul MOE grip and MOE SL stock integrated
• EZ Takedown/Pivot Pins for quick disassembly
• Compatible with M4E1 and standard AR-15 components

Specifications

Frequently Asked Questions

Will this M4E1 Pro lower receiver work with my existing AR-15 parts?

Yes. The M4E1 Pro is compatible with M4E1 and standard AR-15 components and magazines, so you can pair it with uppers and parts you already own.

What comes in the box with this complete lower receiver?

The kit includes the M4E1 PRO Lower Receiver, PRO Ambidextrous Safety, EZ Takedown/Pivot Pins, Aero Precision Enhanced Buffer Tube, H Buffer, Magpul MOE grip, and Magpul MOE SL stock—everything you need to attach an upper and go to work.

Is this lower receiver truly ambidextrous?

Yes. The M4E1 Pro features ambidextrous bolt catch, magazine release, and safety levers, allowing you to operate all controls from either side without modification.

What's the difference between the M4E1 Pro and a standard M4E1 lower?

The M4E1 Pro adds true ambidextrous controls (bolt catch, mag release, and safety) integrated into the design, whereas a standard M4E1 features single-sided controls. The Pro also comes as a complete receiver kit with buffer tube, stock, and grip already installed.