
Availability: In Stock
Current Stock: Out of stock
Building an AR-15 from the ground up? The Aero Precision M4E1 Lower Parts Kit with MOE SL Grip in FDE gives you everything you need to complete your lower receiver—minus the fire control group, so you can choose your own trigger. This kit is purpose-built for Aero Precision's M4E1 lower receivers and works with any mil-spec compatible lower, making it a smart choice for builders who want quality components and the freedom to upgrade their trigger separately.
The kit ships with a Magpul MOE SL Grip in flat dark earth, a compact, ergonomic option that works well for shooters with smaller hands or those who prefer a more streamlined profile. You get all the springs, detents, pins, levers, and catches needed to assemble a functional lower—bolt catch, magazine catch, safety selector, takedown and pivot pins, buffer retainer, and all their associated springs and detents. Since the M4E1 lower includes an integral trigger guard, this kit doesn't duplicate that component, keeping costs down and clutter out of your parts pile.
Whether you're running a precision match trigger, a lightweight single-stage, or a quality mil-spec group, this lower parts kit gets out of the way and lets your trigger choice shine. It's backed by Aero Precision's reputation for reliable, no-nonsense components that work the first time and last through thousands of rounds.
| Manufacturer | Aero Precision |
| Product Type | Lower Parts Kit (minus FCG) |
| Platform | AR-15 |
| Grip | Magpul MOE SL, FDE |
| Fire Control Group | Not included |
| Receiver Compatibility | Aero Precision M4E1 lower; mil-spec compatible lowers |
The kit includes a Magpul MOE SL Grip in FDE, takedown and pivot pins with their springs and detents, bolt catch and roll pin with spring, magazine catch body, button and spring, buffer retainer and spring, safety selector with spring and detent, and a 4-40 set screw for the takedown pin detent hole. It does not include a fire control group (trigger, hammer, sear, etc.).
Yes. This kit is designed for Aero Precision's M4E1 lower but is compatible with any mil-spec AR-15 lower receiver. Note that if your lower doesn't have an integral trigger guard, you may need to source one separately.
The "minus FCG" version lets you buy or upgrade your trigger separately. This is ideal if you already have a preferred trigger or want to install a match-grade or specialty group without paying for components you won't use.
The Magpul MOE SL Grip uses a standard AR-15 grip screw interface, so it will fit any AR platform lower. It's a straightforward swap if you're upgrading from another grip.

SKU: 197553581 • Weight: 0.35oz





Availability: In Stock
Current Stock: Out of stock
Building an AR-15 from the ground up? The Aero Precision M4E1 Lower Parts Kit with MOE SL Grip in FDE gives you everything you need to complete your lower receiver—minus the fire control group, so you can choose your own trigger. This kit is purpose-built for Aero Precision's M4E1 lower receivers and works with any mil-spec compatible lower, making it a smart choice for builders who want quality components and the freedom to upgrade their trigger separately.
The kit ships with a Magpul MOE SL Grip in flat dark earth, a compact, ergonomic option that works well for shooters with smaller hands or those who prefer a more streamlined profile. You get all the springs, detents, pins, levers, and catches needed to assemble a functional lower—bolt catch, magazine catch, safety selector, takedown and pivot pins, buffer retainer, and all their associated springs and detents. Since the M4E1 lower includes an integral trigger guard, this kit doesn't duplicate that component, keeping costs down and clutter out of your parts pile.
Whether you're running a precision match trigger, a lightweight single-stage, or a quality mil-spec group, this lower parts kit gets out of the way and lets your trigger choice shine. It's backed by Aero Precision's reputation for reliable, no-nonsense components that work the first time and last through thousands of rounds.
| Manufacturer | Aero Precision |
| Product Type | Lower Parts Kit (minus FCG) |
| Platform | AR-15 |
| Grip | Magpul MOE SL, FDE |
| Fire Control Group | Not included |
| Receiver Compatibility | Aero Precision M4E1 lower; mil-spec compatible lowers |
The kit includes a Magpul MOE SL Grip in FDE, takedown and pivot pins with their springs and detents, bolt catch and roll pin with spring, magazine catch body, button and spring, buffer retainer and spring, safety selector with spring and detent, and a 4-40 set screw for the takedown pin detent hole. It does not include a fire control group (trigger, hammer, sear, etc.).
Yes. This kit is designed for Aero Precision's M4E1 lower but is compatible with any mil-spec AR-15 lower receiver. Note that if your lower doesn't have an integral trigger guard, you may need to source one separately.
The "minus FCG" version lets you buy or upgrade your trigger separately. This is ideal if you already have a preferred trigger or want to install a match-grade or specialty group without paying for components you won't use.
The Magpul MOE SL Grip uses a standard AR-15 grip screw interface, so it will fit any AR platform lower. It's a straightforward swap if you're upgrading from another grip.
SKU: 197553581 • Weight: 0.35oz
