Does the PSA Lower 300BO work with the PSA 8.5" Pistol-length 300AAC Nitride 7"?
Lower Receiver
PSA Lower 300BO
from $249.99
Upper Receiver
PSA 8.5" Pistol-length 300AAC Nitride 7" Lightweight M-LOK
from $289.99
Palmetto State Armory lower and Palmetto State Armory upper compatibility
Yes, they fit
The PSA Lower 300BO works with the PSA 8.5" Pistol-length 300AAC Nitride 7". 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 PSA 8.5" Pistol-length 300AAC: specs and prices
| PSA Lower 300BO | PSA 8.5" Pistol-length | |
|---|---|---|
| Best price | $249.99 at Palmetto State Armory | $289.99 at Palmetto State Armory |
| Stores | 1 of 1 in stock | 1 of 1 in stock |
| Assembly | Complete | Complete |
| Platform | AR-15 | AR-15 |
| Caliber | 300 Blackout | 300 Blackout |
| Trigger Pin | .154 | n/a |
| Color | FDE | n/a |
| Gas System Length | n/a | Pistol |
| Length | n/a | 8.5 |
Both for $539.98 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.
- PSA 8.5" Pistol-length 300AAC Nitride 7": lowest $219.99 on Aug 31, highest $319.99 on Jul 12 over the last 90 days.