Does the Aero Precision M4E1 Pistol w/ MOE-K2 work with the PSA 7" Nitride 1:7 Pistol Length 5.56?

Lower Receiver
Aero Precision M4E1 Pistol w/ MOE-K2 Grip & SBA4 Brace
from $74.99

Upper Receiver
PSA 7" Nitride 1:7 Pistol Length 5.56 NATO Marauder Upper
from $199.99
lower and Palmetto State Armory upper compatibility
Yes, they fit
The Aero Precision M4E1 Pistol w/ MOE-K2 Grip & works with the PSA 7" Nitride 1:7 Pistol Length 5.56 NATO. 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 lower and Palmetto State Armory 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 Pistol w/ MOE-K2 and any upper
- This pairPSA 7" Nitride 1:7 Pistol Length 5.56 NATO5%
Share of builds with the PSA 7" Nitride 1:7 Pistol Length 5.56 and any lower
- This pairAero Precision M4E1 Pistol w/ MOE-K2 Grip &14%
- Foxtrot Mike Products FM9 Premium 9mmDoes not fit14%
Aero Precision M4E1 Pistol w/ MOE-K2
- Of lower picks
- 0.1%
- Median paid
- $75
PSA 7" Nitride 1:7 Pistol Length 5.56
- Of upper picks
- 0%
- Median paid
- $200
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 lower and Palmetto State Armory upper
The part builders pick most often in each slot alongside these two, checked against both. Parts that conflict are left out.
Handguard
Charging Handle

Aero Precision Breach Small Levers
Fits both
Stock & Brace
Suppressor
Muzzle Device
Aero Precision M4E1 Pistol w/ vs PSA 7" Nitride 1:7 Pistol: specs and prices
| Aero Precision M4E1 Pistol | PSA 7" Nitride 1:7 Pistol | |
|---|---|---|
| Best price | $74.99 at Sportsmans Outdoor Superstore | $199.99 at Palmetto State Armory |
| Stores | 0 of 3 in stock | 1 of 1 in stock |
| Assembly | Complete | Complete |
| Platform | AR-15 | AR-15 |
| Finish | Hardcoat Anodized | n/a |
| Color | Black | n/a |
| Gas System Length | n/a | Pistol |
| Caliber | n/a | 5.56 NATO |
| Length | n/a | 7 |
Both for $274.98 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 M4E1 Pistol w/ MOE-K2: lowest $355.95 on Jul 5, highest $355.95 on Jul 5 over the last 90 days.
- PSA 7" Nitride 1:7 Pistol Length 5.56: lowest $199.99 on Jul 12, highest $199.99 on Jul 12 over the last 90 days.
Upper Receivers frequently paired with the Aero Precision M4E1 Pistol w/ MOE-K2
Most picked next to it in real builds. Only parts our rules say fit the Aero Precision M4E1 Pistol w/ MOE-K2 are listed.






Foxtrot Mike Products 16" Forward Charging 9mm Upper
Fits, check noteCheck fit
Lower Receivers frequently paired with the PSA 7" Nitride 1:7 Pistol Length 5.56
Most picked next to it in real builds. Only parts our rules say fit the PSA 7" Nitride 1:7 Pistol Length 5.56 are listed.













