CMMG Banshee Mk4 5" 5.7x28mm, Armor Black

Regular Price: $1,499.95
Our Price: $1,399.00
UPC: 810046238448
In stock
as of 08/07/2022 4:44PM CST

Store Inventory
Available Online2
Fountain Valley, CAOut of stock
The Colony, TX2

Not for sale in California, Click here for details.

Inter-Store Transfer

If this item is out of stock at your local RifleGear but available at our other location, no problem. Just place your order and select In-Store Pickup as the shipping method. As long as the item is legal in your location, we will transfer the item for you. 

The CMMG MK4 Banshee accepts the new and improved 5.7x28mm AR conversion magazines. The Banshee design gives you the firepower you need in a compact and lightweight platform.

The Banshee Mk4 uses the Radial Delayed Blowback system originally developed for the .45ACP MkG platform. This system is ideal for pistol caliber platforms and allows for softer recoil impulse and bolt weight compared to the traditional blowback system.

Caliber 5.7x28mm
Capacity *32 Rounds
Magazine Pattern CMMG 5.7x28 AR Conversion
Operation Radial Delayed Blowback
Barrel Length 5"
Barrel Type MT Contour, 4140 CM, SBN
Twist 1:9
Muzzle CMMG Zeroed Linear Comp
Upper Receiver Billet 6061 T6 Aluminum
Lower Receiver Mk4 Forged 7075 T6 Aluminum
Handguard CMMG EML4 M-LOK
Charging Handle CMMG Zeroed Ambi
Pistol Grip CMMG Zeroed
Buffer Carbine
Receiver Extension CMMG 6-pos FastBack
Brace CMMG RipBrace
Safety CMMG Zeroed 60/90 Degree
Trigger Mil-Spec Single Stage
Weight 4.6 lbs
Length 20.9"
Finish Cerakote, Armor Black
California Compliant No

* Magazine(s) are not included for Restricted States.

Not for sale in California, Click here for details.

Important note about our photos
While we make every effort to ensure that our product photos are accurate, manufacturers occasionally change the design of components such as triggers, sights, or magazines without notice. Also, modifications to the firearm or component may be required in order to meet specific state compliance requirements. While we make every effort to accurately describe and illustrate the item you are going to receive, there may be visual differences on various components that do not affect functionality.

Federal law requires that you be 21 years of age or older to purchase a handgun, frame or receiver. To purchase a shotgun or rifle, you must be 18 years of age or older. 18 U.S.C. Section 922(b)(1).

As required by federal law, this item may only be shipped to a dealer with a valid Federal Firearms License. If you do not specify the name and shipping address of your dealer, your order will be delayed.
 Click here for more information on buying a gun online.  

California Residents
WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to


Customer Reviews

(0.00)stars out of 5
# of Ratings: 0