CMMG Upper Group Banshee 5.7x28mm 8" Black
$930.51
The CMMG Banshee 5.7x28mm upper group delivers superior ballistics and reduced recoil for your PDW AR15 build. Compatible with Mk57 or standard AR15 lowers.
Out of stock
Designed to provide superior ballistics and less felt recoil than most pistol caliber personal defense weapons 5.7x28mm has quickly become one of the most popular chamberings in the PDW space. With the 8” BANSHEE™ upper group you can build the PDW AR15 of your dreams. Compatible with either CMMG® Mk57™ lowers or a standard AR15/Mk4 lower (when used with CMMG 5.7 AR Conversion Mags). Available in six different Cerakote finishes all CMMG Upper Groups come complete with bolt carrier group and ZEROED™ accessories including:
- ZEROED AR15 Polymer Dust Cover
- ZEROED AR15 Ambi Charging Handle
- ZEROED Linear Compensator 5.56mm
- Radial Delayed Blowback™ Operating System
- Lifetime Quality Guarantee
| Weight | 3.300 lbs |
|---|---|
| Dimensions | 20.250 × 4.500 × 3.250 in |
| Manufacturer | Cmmg Inc. |
| Caliber | 5.7x28mm |
| Barrel Length | 8″ |
| Finish | Black |
| Compatible With | CMMG® Mk57™ lowers, standard AR15/Mk4 lower |
PROCESSING & SHIPPING
Orders typically ship within 1–3 business days (Monday–Friday) after payment and all required documentation are received. Time to arrival after shipment depends on the carrier. Shipping method is at BT Gun Company’s discretion; ammunition and oversized accessories are charged at actual shipping cost. We do not ship to Hawaii or Alaska.
FIREARM TRANSFERS
- Firearms must ship to a licensed FFL dealer of your choosing — confirm with them first that they can accept the transfer.
- Your receiving FFL will need to email their license to [email protected] before we can ship.
- Inspect your firearm at your FFL’s location before signing ATF Form 4473 — once signed, the firearm is considered accepted.
You’re responsible for knowing the firearms laws in your state before ordering. For complete shipping, returns, and restocking-fee policy details, see our Shipping & Returns page.
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