Brand CMMG
Category Tactical Pistols
Series MK57
Model Banshee
Caliber 5.7x28mm
Barrel Length Range 4″ to 4.99″
Operating System Blowback
Capacity 20
Action Semi-Auto
OAL 20.90″
Sights None
Barrel Finish Black Nitride
Barrel Material Chrome Moly Steel
Muzzle CMMG Zeroed Linear Compensator
Twist 1:9″
Receiver Description Picatinny Rail
Magazine Type FN Five-Seven
Grips CMMG Zeroed
Handguards EML 4″ M-LOK
Includes Magazine
Receiver Material Aluminum
Safety CMMG Zeroed 60 / 90 Degree
Thread Pattern 1 / 2″x28
Stock Description Pistol Tube
Barrel Description Medium Taper Threaded
Barrel Length 5″
Receiver Finish Tungsten Cerakote
Trigger Zeroed Drop-In Single Stage
Weight 4.40 lbs
Stock Finish Tungsten
FFL Transfer & Firearms Laws for CMMG Banshee MK57 5.7x28mm, 5" Taper Threaded Barrel, Tungsten Cerakote, Pistol Tube, 20rd
All firearms, including the CMMG Banshee MK57 5.7x28mm, 5" Taper Threaded Barrel, Tungsten Cerakote, Pistol Tube, 20rd, must be shipped to a licensed Federal Firearms License (FFL) dealer. You will be required to complete a background check and any necessary paperwork before taking possession.
How It Works
- Place your order online.
- Provide your preferred FFL dealer information.
- We ship the firearm directly to your FFL.
- You complete the background check and pickup at the FFL.
Legal Compliance
We comply with all federal and state firearm laws. It is your responsibility to ensure the CMMG Banshee MK57 5.7x28mm, 5" Taper Threaded Barrel, Tungsten Cerakote, Pistol Tube, 20rd is legal in your state. Some states may have restrictions on certain firearm models or features.
Helpful Resources
Need assistance? Contact our Miami store for help with FFL transfers and firearm compliance.
Frequently Asked Questions About This Product
Why buy CMMG Banshee MK57 5.7x28mm, 5" Taper Threaded Barrel, Tungsten Cerakote, Pistol Tube, 20rd from Miami Shooters Supply?
We’re a trusted firearms dealer offering fast shipping, competitive pricing, and 100% compliance with U.S. federal firearm laws. All orders ship from our licensed facility with full tracking and expert customer service.
Where can I buy CMMG Banshee MK57 5.7x28mm, 5" Taper Threaded Barrel, Tungsten Cerakote, Pistol Tube, 20rd?
You can purchase this item directly on our website and have it shipped to your local FFL dealer. You can also visit us in-store in Miami, Florida.
Is CMMG Banshee MK57 5.7x28mm, 5" Taper Threaded Barrel, Tungsten Cerakote, Pistol Tube, 20rd available now?
Availability is shown live on this page. If the “Add to Cart” button is visible, this item is currently in stock and ready to ship.
What category does this product belong to?
This product is listed under: AR-15 Pistols, RIFLES.
What tags or features does this product have?
Key features and tags for this product include: CMMG, CMMG Banshee, Firearm.
Is this product legal in my state?
It is your responsibility to ensure this item is legal in your state or locality. We ship only to valid FFL dealers in compliance with U.S. laws. Always check your local regulations.

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