Does the PSA Lower 300BO work with the Aero Precision M4E1 Assembled Gen 2 10?
Lower Receiver
PSA Lower 300BO
from $249.99
Upper Receiver
Aero Precision M4E1 Assembled Gen 2 10 Pistol Length
from $510.99
Palmetto State Armory lower and Aero Precision upper compatibility
Yes, they fit
The PSA Lower 300BO works with the Aero Precision M4E1 Assembled Gen 2 10 Pistol. Our compatibility rules found no conflict between them.
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.
PSA Lower 300BO vs Aero Precision M4E1 Assembled: specs and prices
| PSA Lower 300BO | Aero Precision M4E1 | |
|---|---|---|
| Best price | $249.99 at Palmetto State Armory | $510.99 at KY Gun Company |
| Stores | 1 of 1 in stock | 0 of 4 in stock |
| Assembly | Complete | Complete |
| Platform | AR-15 | AR-15 |
| Caliber | 300 Blackout | 300 Blackout |
| Trigger Pin | .154 | n/a |
| Finish | Cerakote | n/a |
| Gas System Length | n/a | Pistol |
| Receiver Type | n/a | M4E1 |
| Length | n/a | 10 |
Both for $760.98 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 Lower 300BO: lowest $237.49 on Jul 12, highest $249.99 on Jul 14 over the last 90 days.
- Aero Precision M4E1 Assembled Gen 2 10: lowest $459.56 on Jul 6, highest $554.99 on Jul 12 over the last 90 days.