Aero Precision M4E1 Lower Parts Kit W/ Moe Grip For Ar-15 Fde
The Aero Precision M4E1 Lower Parts Kit with MOE Grip is a complete LPK purpose-built for shooters finishing an Aero M4E1 lower receiver. If you're assembling an AR-15 on an M4E1 platform, this kit bundles all the small parts and springs you need—minus the trigger guard, which is already integrated into Aero's M4E1 design. It ships with a Magpul MOE pistol grip in FDE, so you're getting matched furniture without hunting for aftermarket replacements. That alone saves time and keeps your build cohesive.
AR builders who've used stripped lowers know the routine: most end up swapping the stock grip anyway. Aero solved that by pairing a proven Magpul MOE grip with a complete, logically organized parts kit. The MOE grip is a field-tested choice among competitive shooters, hunters, and tactical users—it's designed for fast manipulation and works equally well with or without rail covers. In FDE, it coordinates with modern furniture trends and pairs naturally with many handguard and stock options in the same finish.
Everything you need to complete fire-control assembly and receiver function is included: takedown and pivot pins with detents and springs, bolt catch assembly, magazine catch, safety selector, trigger and hammer with their springs, disconnector, and pins. Just add your M4E1 lower receiver and upper assembly, and you're ready to build. This is straightforward, no-surprise inventory—Aero and Magpul parts designed to work together from the start.
Key Features
- Complete lower parts kit for Aero Precision M4E1 lower receiver builds
- Includes Magpul MOE pistol grip in FDE for immediate use
- No trigger guard included—Aero M4E1 lowers have integrated guard
- All takedown, pivot, bolt catch, magazine catch, and fire-control components included
- Quality trigger and hammer assembly with springs and disconnector
- Proven Magpul ergonomics for shooting control and speed
Specifications
| Brand | Aero Precision |
| Kit Type | Lower Parts Kit (LPK) |
| Platform | AR-15 / M4E1 Lower Receiver |
| Grip | Magpul MOE Pistol Grip, FDE |
| Includes | Takedown pins, pivot pins, detents, springs, bolt catch assembly, magazine catch, safety selector, trigger, hammer, disconnector, fire-control pins and hardware |
| Trigger Guard | Not included (integrated into M4E1 lower) |
Frequently Asked Questions
Will this LPK work with my AR-15 lower?
This kit is designed specifically for Aero Precision's M4E1 lower receiver. The M4E1 has an integrated trigger guard, so this kit does not include a separate guard. If you have a standard milspec lower or a different manufacturer's lower, you'll need a standard lower parts kit instead.
What's included in the kit?
You get a complete inventory for assembly: Magpul MOE grip in FDE, takedown and pivot pin assemblies with springs and detents, bolt catch with roll pin and spring, magazine catch body button and spring, safety selector with spring and detent, trigger and hammer with springs, disconnector with spring, fire-control pins, and a 4-40 set screw for the threaded takedown pin detent hole.
Do I need anything else to complete my M4E1 build?
You'll need an Aero Precision M4E1 lower receiver, an upper receiver assembly, and a barrel. This kit supplies all the small parts and springs for the lower receiver; everything else comes from your choice of upper components.
Why choose the MOE grip over a standard A2 grip?
The Magpul MOE grip is ergonomic, less bulky than traditional A2 grips, and favored by shooters who want better control for faster target transitions and manipulation. It's a common upgrade, so buying it pre-assembled with the kit saves you the step of replacing it later.

