Does the PSA American Flag Engraved Stripped work with the Aero Precision M4E1 Threaded Upper 18"?
Lower Receiver
PSA American Flag Engraved Stripped Lower
from $59.99
Upper Receiver
Aero Precision M4E1 Threaded Upper 18" 5.56 Rifle Length
from $569.99
Palmetto State Armory lower and upper compatibility
Yes, they fit
The PSA American Flag Engraved Stripped Lower works with the Aero Precision M4E1 Threaded Upper 18" 5.56. 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 Palmetto State Armory lower and upper
Backed by tens of thousands of qualified builds that have both a lower and an upper.
Share of builds with the PSA American Flag Engraved Stripped and any upper
- This pairAero Precision M4E1 Threaded Upper 18" 5.566%
Share of builds with the Aero Precision M4E1 Threaded Upper 18" and any lower
- This pairPSA American Flag Engraved Stripped Lower11%
PSA American Flag Engraved Stripped
- Of lower picks
- 0.1%
- Median paid
- $60
Aero Precision M4E1 Threaded Upper 18"
- Of upper picks
- 0.1%
- Median paid
- $143
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 Palmetto State Armory lower and upper
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
Stock & Brace
Bolt Carrier Group
PSA 5.56 Full-Auto Nitride MPI
Fits both
Pistol Grip
Handguard
Daniel Defense MFR XL Free Float
Fits both
PSA American Flag Engraved vs Aero Precision M4E1 Threaded: specs and prices
| PSA American Flag Engraved | Aero Precision M4E1 Threaded | |
|---|---|---|
| Best price | $59.99 at Palmetto State Armory | $569.99 at AR15 Discounts |
| Stores | 0 of 1 in stock | 0 of 1 in stock |
| Assembly | Stripped | Complete |
| Platform | AR-15 | AR-15 |
| Caliber | Multi | 5.56 NATO |
| Trigger Pin | .154 | n/a |
| Finish | Hardcoat Anodized | n/a |
| Gas System Length | n/a | Rifle |
| Receiver Type | n/a | M4E1 |
| Length | n/a | 18 |
Both for $629.98 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
- PSA American Flag Engraved Stripped: lowest $59.99 on Jul 12, highest $59.99 on Jul 12 over the last 90 days.
- Aero Precision M4E1 Threaded Upper 18": lowest $143.00 on Jul 6, highest $569.99 on Sep 4 over the last 90 days.
Upper Receivers frequently paired with the PSA American Flag Engraved Stripped
Most picked next to it in real builds. Only parts our rules say fit the PSA American Flag Engraved Stripped are listed.
Lower Receivers frequently paired with the Aero Precision M4E1 Threaded Upper 18"
Most picked next to it in real builds. Only parts our rules say fit the Aero Precision M4E1 Threaded Upper 18" are listed.
