Does the Aero Precision M4E1 Upper work with the PSA 5.56 Full-Auto Nitride MPI?
Upper Receiver
Aero Precision M4E1 Upper
from $399.99
Bolt Carrier Group
PSA 5.56 Full-Auto Nitride MPI
from $89.99
Aero Precision upper and Palmetto State Armory bolt carrier group compatibility
Yes, they fit
The Aero Precision M4E1 Upper works with the PSA 5.56 Full-Auto Nitride MPI. Our compatibility rules found no conflict between them.
No one has built this exact setup yet, but Aero Precision uppers with Palmetto State Armory bolt carrier groups are a common pairing.
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 upper and Palmetto State Armory bolt carrier group
Backed by thousands of qualified builds that have both an upper and a bolt carrier group.
Share of builds with the PSA 5.56 Full-Auto Nitride MPI and any upper
Aero Precision M4E1 Upper
Not in enough builds yet to report.
PSA 5.56 Full-Auto Nitride MPI
- Of bolt carrier group picks
- 3.8%
- Median paid
- $75
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 upper and Palmetto State Armory bolt carrier group
The part builders pick most often in each slot alongside these two, checked against both. Parts that conflict are left out.
Charging Handle
Fits both
Lower Receiver
Fits both
Stock & Brace
Gas Block
Trigger
Pistol Grip
Aero Precision M4E1 Upper vs PSA 5.56 Full-Auto Nitride MPI: specs and prices
| Aero Precision M4E1 Upper | PSA 5.56 Full-Auto Nitride | |
|---|---|---|
| Best price | n/a | $89.99 at Palmetto State Armory |
| Stores | n/a | 1 of 1 in stock |
| Assembly | Complete | n/a |
| Platform | AR-15 | n/a |
| Gas System Length | Mid-Length | n/a |
| Caliber | 5.56 NATO | n/a |
| Receiver Type | M4E1 | n/a |
| Length | 16 | n/a |
| Cartridge | n/a | 5.56 NATO |
| Style | n/a | Full-Auto |
| Finish | n/a | Nitride |
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 Upper
No store lists it today.
PSA 5.56 Full-Auto Nitride MPI
- Palmetto State Armory$89.99
Price history, last 90 days
- PSA 5.56 Full-Auto Nitride MPI: lowest $69.99 on Jul 31, highest $89.99 on Aug 11 over the last 90 days.
Bolt Carrier Groups most paired with Aero Precision uppers
The Aero Precision M4E1 Upper is not in enough builds yet, so these are the most picked next to any Aero Precision upper. Only parts our rules say fit the Aero Precision M4E1 Upper are listed.
Upper Receivers frequently paired with the PSA 5.56 Full-Auto Nitride MPI
Most picked next to it in real builds. Only parts our rules say fit the PSA 5.56 Full-Auto Nitride MPI are listed.
