Does the Aero Precision M4E1 Stripped work with the Lewis Machine & Tool Mrp-L M-LOK Specwar?

Lower Receiver
Aero Precision M4E1 Stripped
from $112.99

Upper Receiver
Lewis Machine & Tool Mrp-L M-LOK Specwar 5.56mm Assembled
from $758.99
Aero Precision lower and Lewis Machine & Tool upper compatibility
Yes, they fit
The Aero Precision M4E1 Stripped works with the Lewis Machine & Tool Mrp-L M-LOK Specwar 5.56mm. Our compatibility rules found no conflict between them.
This exact setup is in a real GunPartPicker build.
Counted from real GunPartPicker builds: parts lists people put together while planning to buy.
Checked by the same rules the AR builder runs on every part you add: caliber, frame size, receiver pattern, thread pitch and gas length.
Fit is judged from the specs retailers list, which can be missing or wrong. Confirm with the manufacturer before you buy, and have a qualified gunsmith check any build before you fire it.
How often builders pair the Aero Precision lower and Lewis Machine & Tool upper
Backed by tens of thousands of qualified builds that have both a lower and an upper.
Share of builds with the Aero Precision M4E1 Stripped and any upper
- This pairLewis Machine & Tool Mrp-L M-LOK Specwar 5.56mm0.3%
Share of builds with the Lewis Machine & Tool Mrp-L M-LOK Specwar and any lower
- This pairAero Precision M4E1 Stripped7%
Aero Precision M4E1 Stripped
- Of lower picks
- 1.9%
- Median paid
- $101
Lewis Machine & Tool Mrp-L M-LOK Specwar
- Of upper picks
- 0.1%
- Median paid
- $759
How we count ⌄
These shares come from GunPartPicker's build data: real parts lists people put together while planning a purchase, not sales or surveys. A build counts a part only when it is the final pick for its slot, so parts that were swapped out never count. Fit never comes from these numbers; it comes from our compatibility rules alone.
Frequently built with the Aero Precision lower and Lewis Machine & Tool upper
The part builders pick most often in each slot alongside these two, checked against both. Parts that conflict are left out.
Charging Handle

Aero Precision Breach Small Levers
Fits both
Pistol Grip
Bolt Carrier Group

Aero Precision 5.56 BCG W/C158 Bolt
Fits both
Stock & Brace
Gas Block
Aero Precision M4E1 Stripped vs Lewis Machine & Tool Mrp-L: specs and prices
| Aero Precision M4E1 Stripped | Lewis Machine & Tool Mrp-L | |
|---|---|---|
| Best price | $112.99 at Brownells | $912.60 at BattleHawk Armory |
| Stores | 0 of 5 in stock | 3 of 5 in stock |
| Assembly | Stripped | Complete |
| Platform | AR-15 | AR-15 |
| Trigger Pin | .154 | n/a |
| Finish | Hardcoat Anodized | n/a |
| Color | Black | n/a |
| Caliber | n/a | 5.56 NATO |
| Length | n/a | 11.5 |
| Weight | 8.6 | n/a |
Both for $1025.59 at today's best prices.
Today's best prices and 90 day price history
Every store we track for each part, cheapest in stock first. Prices are checked through the day.
Aero Precision M4E1 Stripped
Price history, last 90 days
- Aero Precision M4E1 Stripped: lowest $100.76 on Jul 6, highest $139.99 on Jul 12 over the last 90 days.
- Lewis Machine & Tool Mrp-L M-LOK Specwar: lowest $716.99 on Jul 25, highest $940.50 on Jul 11 over the last 90 days.
Upper Receivers frequently paired with the Aero Precision M4E1 Stripped
Most picked next to it in real builds. Only parts our rules say fit the Aero Precision M4E1 Stripped are listed.
Lower Receivers frequently paired with the Lewis Machine & Tool Mrp-L M-LOK Specwar
Most picked next to it in real builds. Only parts our rules say fit the Lewis Machine & Tool Mrp-L M-LOK Specwar are listed.















