CMMG is temporarily halting the sale of complete firearms, upper receiver groups, lower receiver groups, and Radial Delayed Blowback BCG kits on our website in order to focus on outstanding orders. We apologize for the inconvenience and appreciate your patience as we traverse this extremely busy time. Sign up for notifications on your favorite products to get notified when they become available again or find a local dealer on our dealer page.
Banshee 300 Pistol, Mk57, 5.7 x 28mm
If you want the best an AR has to offer, then the 300 Series is your choice. This AR Pistol is fitted with every desired feature including a choice of 10 Premier Cerakote colors, laser engraved model name on the lower receiver, updated ambidextrous controls and sling points along with a Magpul grip, unique oversized mag release, CMMG's revolutionary RIPBRACE, and a thread protector on the barrel making muzzle devices an easy switch. Chambered in 5.7x28mm, these pistols are ready for the range. Ships with one 20 Round magazine.
The Mk57 platform accepts FN FiveSeven-style 5.7x28 magazines.
CMMG delivers its lightest and most compact firearms within the BANSHEE line of Short Barreled Rifles (SBR’s) and AR pistols. Don’t let these little guys fool you though. With a wide range of caliber offerings available, there’s plenty of firepower in the BANSHEE line. With a variety of different barrel lengths and furniture to choose from, the BANSHEE 100, BANSHEE 200 and BANSHEE 300 series will have the right combination for you when concealment and portability matter the most.
All CMMG Products come with our Lifetime Quality Guarantee.
|Caliber||5.7x28mm, 5.7x28MM (FN)|
|Operating System||Radial Delayed Blowback|
|Barrel Material||4140CM, SBN|
|Muzzle Device||Thread Protector|
|Muzzle Thread||1/2 X 28|
|Gas Port Location||N/A|
|Upper Receiver||Forged 7075-T6 AL Upper|
|Lower Receiver||Forged 7075-T6 AL Lower|
|Hand Guard||CMMG RML4 M-LOK|
|Finish||Cerakote Receivers, Handguard, RipStock|
|Charging Handle||CMMG ZEROED Ambi Charging Handle AR15|
|Pistol Grip||Magpul MOE|
|Receiver Extension||CMMG 6 Position Fastback Buffer Tube|
|Stock / Brace||CMMG RipBrace|
|Trigger Type||Mil-Spec Single Stage|
|Trigger Guard||Integrated Into Lower|
|Safety Selector||CMMG Ambi|
|Magazine||Pro Mag 20rd|