Does the Aero Precision M4A1 Clone work with the LMT MRP-L M-LOK?
Aero Precision lower and LMT Defense upper compatibility
Yes, they fit
The Aero Precision M4A1 Clone works with the LMT MRP-L M-LOK. 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 LMT Defense upper
Backed by tens of thousands of qualified builds that have both a lower and an upper.
Share of builds with the Aero Precision M4A1 Clone and any upper
- This pairLMT MRP-L M-LOK0.3%
Share of builds with the LMT MRP-L M-LOK and any lower
- This pairAero Precision M4A1 Clone25%
Aero Precision M4A1 Clone
- Of lower picks
- 2.1%
- Median paid
- $130
LMT MRP-L M-LOK
- Of upper picks
- 0%
- Median paid
- $750
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 LMT Defense 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
Gas Block
Stock & Brace
Handguard
Aero Precision M4A1 Clone vs LMT MRP-L M-LOK: specs and prices
| Aero Precision M4A1 Clone | LMT MRP-L M-LOK | |
|---|---|---|
| Best price | $129.99 at Brownells | $890.10 at AR15 Discounts |
| Stores | 0 of 3 in stock | 2 of 2 in stock |
| Assembly | Stripped | Partial |
| Platform | AR-15 | AR-15 |
| Caliber | 5.56 NATO | 5.56 NATO |
| Trigger Pin | .154 | n/a |
| Finish | Hardcoat Anodized | n/a |
| Color | Black | n/a |
| Weight | 8.35 | n/a |
Both for $1020.09 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.
Price history, last 90 days
- Aero Precision M4A1 Clone: lowest $111.87 on Aug 18, highest $129.99 on Jul 5 over the last 90 days.
- LMT MRP-L M-LOK: lowest $750.00 on Jul 5, highest $890.10 on Sep 19 over the last 90 days.
Upper Receivers frequently paired with the Aero Precision M4A1 Clone
Most picked next to it in real builds. Only parts our rules say fit the Aero Precision M4A1 Clone are listed.
Lower Receivers frequently paired with the LMT MRP-L M-LOK
Most picked next to it in real builds. Only parts our rules say fit the LMT MRP-L M-LOK are listed.


















