Does the PSA 10.5" Pistol Length 300AAC Blackout work with the PSA 5.56 Phosphate MPI Full-Auto?
Upper Receiver
PSA 10.5" Pistol Length 300AAC Blackout 1:8 Nitride 9"
from $329.99
Bolt Carrier Group
PSA 5.56 Phosphate MPI Full-Auto
from $99.99
Palmetto State Armory upper and Palmetto State Armory bolt carrier group compatibility
Yes, they fit
The PSA 10.5" Pistol Length 300AAC Blackout 1:8 works with the PSA 5.56 Phosphate MPI Full-Auto. 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 10.5" Pistol Length 300AAC vs PSA 5.56 Phosphate MPI: specs and prices
| PSA 10.5" Pistol Length | PSA 5.56 Phosphate MPI | |
|---|---|---|
| Best price | $329.99 at Palmetto State Armory | $99.99 at Palmetto State Armory |
| Stores | 1 of 1 in stock | 1 of 1 in stock |
| Assembly | Complete | n/a |
| Platform | AR-15 | n/a |
| Gas System Length | Pistol | n/a |
| Caliber | 300 Blackout | n/a |
| Length | 10.5 | n/a |
| Cartridge | n/a | 5.56 NATO |
| Finish | n/a | Phosphate |
Both for $429.98 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 10.5" Pistol Length 300AAC Blackout: lowest $289.99 on Aug 19, highest $329.99 on Jul 12 over the last 90 days.
- PSA 5.56 Phosphate MPI Full-Auto: lowest $99.99 on Jul 12, highest $99.99 on Jul 12 over the last 90 days.