CMMG Banshee MK4 4.6x30mm 8" Pistol - Extended Armor Black
$1,305.98
$1,374.95
(You save
$68.97
)
- Caliber-Gauge:
- 4.6x30mm H&K
- Finish-Color:
- Black
The CMMG Banshee MK4 4.6x30mm 8" pistol is a purpose-built AR platform personal defense weapon that brings an exciting and underutilized cartridge to the US civilian market. Chambered in 4.6x30mm—the same round paired with the legendary Heckler & Koch MP7—this compact, lightweight AR pistol delivers light recoil, high velocity, and serious penetration without the extreme cost of 5.7x28mm ammo. At just 3.9 lbs and 23.7" overall length, the Banshee MK4 is nimble enough for vehicle, property, or close-quarters defense scenarios while remaining controllable and quick to transition between targets.
What sets the Banshee MK4 apart is its thoughtful engineering for the cartridge and platform. The 8" barrel is optimized with a 1:5.9 twist and paired with CMMG's own FourSix-specific gas block and micro gas port to cycle 4.6x30mm reliably. The billet upper and forged lower receivers are aluminum (6061 T6 and 7075 T6 respectively), while the EML7 M-LOK handguard offers genuine modularity—full-length slots on both sides and bottom, plus M-LOK sections between top Picatinny rails—so you can mount lights, lasers, or other accessories exactly where you need them. The ZEROED ambi charging handle, drop-in trigger, and 60/90-degree safety selector keep controls accessible whether you're right- or left-handed.
The Banshee MK4 ships with a 40-round magazine, so you've got serious magazine-fed capacity for a defensive pistol. The ZEROED linear compensator on the 1/2x28 threads helps manage what little recoil the 4.6x30mm generates. Built in Extended Armor Black Cerakote, it's a modern, functional design that doesn't shout for attention—it just works. Whether you're exploring the 4.6x30mm platform, looking for a tack-driving, low-recoil carbine pistol, or building a specialized home-defense or vehicle gun, the Banshee MK4 is a solid, well-executed choice.
Firearm Shipments:
To buy rifles or shotguns, you must be 18 years old, and for handguns, actions, or receivers, the minimum age is 21. By placing an order for this firearm, you confirm that you are the legitimate transferee/buyer, meet the legal age requirements, and comply with all Federal, State, and local laws and regulations necessary to purchase this firearm.
We only ship firearms to valid Federal Firearms License (FFL) holders. At checkout we provide a FFL locator for your convenience.
We will need a copy of the FFL’s license to facilitate the process, kindly request your dealer to email us a copy of their FFL, as we cannot dispatch the firearm until we receive this document. It is imperative for the buyer to choose their FFL dealer, ensure they are willing to facilitate the transfer, and have them email their FFL copy to BOSQUE Outdoors. To avoid any confusion, the customer's name or order number must be mentioned in the email containing the FFL.
Email: [email protected]
- Prior to placing an order, it is the buyer's responsibility to understand and adhere to their state's firearm regulations.
- The buyer should verify with their receiving dealer that the chosen firearm is legally permissible in their state.
- The buyer is accountable for any transfer fees or background check charges imposed by the receiving dealer. If the designated dealer declines to accept the firearm delivery, the buyer assumes responsibility for shipping costs to retrieve the firearm and resend it to an accommodating dealer.
- Handguns will be shipped using air transportation, while long guns can be shipped using ground methods. If your order includes a mix of firearm and non-firearm items, BOSQUE Outdoors will send the firearm(s) to your selected FFL dealer and the remaining non-firearm items to your billing address.
- Firearms cannot be returned to BOSQUE Outdoors; please contact the manufacturer for warranty claims.
- Firearms refused by the FFL Dealer or which cannot be transferred due to a failed background check are subject to a $75 restocking fee plus 10% of the purchase price.
