Does the CMMG MK4 .300BLK Banshee Upper Group work with the Aero Precision 5.56 BCG W/C158 Bolt?
Upper Receiver
CMMG MK4 .300BLK Banshee Upper Group Receiver 12.5in
from $799.99
Bolt Carrier Group
Aero Precision 5.56 BCG W/C158 Bolt
from $148.99
CMMG upper and Aero Precision bolt carrier group compatibility
Yes, they fit
The CMMG MK4 .300BLK Banshee Upper Group Receiver works with the Aero Precision 5.56 BCG W/C158 Bolt. 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.
CMMG MK4 .300BLK Banshee Upper vs Aero Precision 5.56 BCG W/C158: specs and prices
| CMMG MK4 .300BLK Banshee | Aero Precision 5.56 BCG | |
|---|---|---|
| Best price | $799.99 at Optics Planet | $148.99 at KY Gun Company |
| Stores | 0 of 1 in stock | 0 of 6 in stock |
| Assembly | Complete | n/a |
| Platform | AR-15 | n/a |
| Caliber | 300 Blackout | n/a |
| Length | 12.5 | n/a |
| Cartridge | n/a | 5.56 NATO |
| Finish | n/a | Black |
Both for $948.98 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.
CMMG MK4 .300BLK Banshee Upper Group Receiver
- Optics Planetout of stock$799.99
Price history, last 90 days
- CMMG MK4 .300BLK Banshee Upper Group: lowest $799.99 on Jul 5, highest $799.99 on Jul 5 over the last 90 days.
- Aero Precision 5.56 BCG W/C158 Bolt: lowest $131.53 on Jul 6, highest $149.99 on Jul 12 over the last 90 days.