Does the PSA Lower 300BO work with the ABC RIFLE COMPANY AR9 9mm Luger Pistol?

Lower Receiver
PSA Lower 300BO
from $249.99

Upper Receiver
ABC RIFLE COMPANY AR9 9mm Luger Pistol Billet 4in Barrel
from $409.99
Palmetto State Armory lower and ABC Rifle Company upper compatibility
They fit, with a catch
The PSA Lower 300BO works with the ABC RIFLE COMPANY AR9 9mm Luger Pistol Billet, with one thing to check: Lower Receiver (300 Blackout) needs a 9mm magazine well adapter for a PCC/9mm build.
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 ABC RIFLE COMPANY AR9 9mm: specs and prices
| PSA Lower 300BO | ABC RIFLE COMPANY AR9 9mm | |
|---|---|---|
| Best price | $249.99 at Palmetto State Armory | $409.99 at Optics Planet |
| Stores | 1 of 1 in stock | 1 of 1 in stock |
| Assembly | Complete | Complete |
| Platform | AR-15 | AR-9 |
| Caliber | 300 Blackout | 9mm |
| Trigger Pin | .154 | n/a |
| Finish | Cerakote | n/a |
| Gas System Length | n/a | Blowback |
| Receiver Type | n/a | Billet |
| Length | n/a | 4 |
Both for $659.98 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.
- ABC RIFLE COMPANY AR9 9mm Luger Pistol: lowest $409.99 on Jul 5, highest $409.99 on Jul 5 over the last 90 days.