CMMG Banshee MK4 Fixed Ejector Handgun 9mm Luger 30rd Magazine 5'' Barrel RipBrace Armor Black
$1,491.89
The CMMG Banshee MK4 is a 9mm Luger handgun featuring a fixed ejector and radial delayed blowback operating system, designed for reliability and versatility. With a 5-inch barrel and 30-round magazine capacity, it is well-suited for applications like home defense and range training.
2 in stock
Features:
- Platform: Mk4
- Caliber: 9mm Luger
- Operating System: Fixed Ejector Radial Delayed Blowback
- Barrel Length: 5
- Barrel Twist: 1:10
- Barrel Contour: MT
- Barrel Material: 4140CM SBN
- Barrel Twist: 1:10
- Muzzle Device: CMMG ZEROED Linear Comp
- Muzzle Thread: 1/2 X 28
- Gas Port Location: N/A
- Gas Block: N/A
- Upper Receiver: Billet 6061 T6 Aluminum
- Lower Receiver: Mk4 Forged 7075 T6 Aluminum
- Hand Guard: CMMG EML4 M-LOK
- Finish: Cerakote Standard
- Charging Handle: CMMG ZEROED Ambi
- Pistol Grip: CMMG ZEROED Pistol Grip
- Buffer Type: Carbine
- Receiver Extension: CMMG 6 Position Fastback Extension
- Stock / Brace: CMMG RipBrace
- Trigger Type: ZEROED Drop-In Single Stage
- Trigger Guard: CMMG ZEROED Trigger Guard
- Safety Selector: CMMG ZEROED 60/90 Degree
- Magazine: CMMG 9ARC 30rd
- Weight: 4.3 lbs
- Length: 20.8″
| Weight | 9.016 lbs |
|---|---|
| Dimensions | 39.750 × 13.600 × 4.250 in |
| Manufacturer | Cmmg Inc. |
| Barrel Length | 5.0 |
| Capacity | 30+1 |
| Action | Fixed Ejector Radial Delayed Blowback |
| Finish | Armor Black |
| Frame Material | Aluminum |
| Caliber | 9mm Luger |
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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