CMMG Banshee 300 Mk4 .300 Blackout AR-15 Semi Auto Pistol 8″ Barrel 30 Rounds RML7 M-LOK Handguard CMMG Micro/CQB RipBrace Sniper Grey Finish


  • All firearm sales are final. NO RETURNS.
  • Return to manufacturer for warranty service.
    • Firearms are only available for purchase online.

    Due to high volume, some firearms may require up to 2 weeks to process.

    A $15.99 handling fee will be charged per order. No additional charge for multiple firearms on an order.

Category: Product ID: 14864


For over a decade CMMG has remained committed to producing some of the best AR platform firearms in the industry. The Banshee 300 is the ideal multi-purpose firearm from CMMG with all of the advanced features you’re looking for in an AR-15 pistol. Chambered in the popular .300 AAC Blackout cartridge, it includes a SLR Adjustable Gas Block so that you can fine tune the pistol to your favorite load. This AR style pistol features a 8″ 4140 steel barrel and an aluminum RML7 M-LOK hand guard. It comes with a CMMG Micro/CQB pistol brace and a 5 position enhanced receiver extension for the ultimate in control and a custom fit. This is a great quality AR-15 pistol that will provide you with years of awesome performance The .300 Blackout cartridge is a versatile round that’s ideal for hunting hogs, predators and varmints with a sound suppressor, but it’s also a great option for home defense and competition! Whether you like plinking at the range for recreational shooting, you’re a professional shooter that needs reliability and accuracy or you’re a serious hunter, the Mk4 Banshee 300 from CMMG is the only gun you’ll need!

Specifications and Features:
CMMG Inc. Banshee 300 Mk4 30A81E2-SG
AR15 Semi Automatic Pistol
.300 AAC Blackout
30 Rounds
8″ 4140 Steel Medium Taper Barrel with a 1:7 Twist
Threaded Muzzle 5/8×24 TPI with DefCan 3 Flash Hider
.750 SLR Adjustable Gas Block
Forged 7075-T6 Aluminum Receivers
CMMG Oversized Ambidextrous Charging Handle
CMMG Ambidextrous Safety Selector
Single Stage Mil-Spec Trigger
CMMG RML7 M-LOK Handguard
Full Length Picatinny Top Rail
Magpul MOE Pistol Grip
CMMG Micro/CQB RipBrace Pistol Brace
5 Position Enhanced Receiver Extension
Receiver End Plate with Ambidextrous Sling Loops
Sniper Gray Cerakote Finish
Length 23.8″
Weight 5 lbs 3 oz
Made In The USA


There are no reviews yet.

Be the first to review “CMMG Banshee 300 Mk4 .300 Blackout AR-15 Semi Auto Pistol 8″ Barrel 30 Rounds RML7 M-LOK Handguard CMMG Micro/CQB RipBrace Sniper Grey Finish”

Your email address will not be published. Required fields are marked *