CMMG Banshee 100 Mk10 RDB AR-15 8" 10mm Black 30 Rounds 10A42CB

Manufacturer: CMMG Inc.

Model: Banshee™ 100 MK10

Operation: Radial Delayed Blowback

SKU: 10A42CB

Caliber: 10mm AUTO

Capacity: (1) 30 Round SMG Magazine

Barrel: 8", Medium Taper, 4140CM, SBN

Rate of Twist: 1 in 16"

Muzzle: SV Brake, threaded .578-28

Receiver: Forged 7075-T6 AL M4 type upper, Forged 7075-T6 AL Lower

Charging Handle: CMMG Mil-Spec

Hand Guard: CMMG RML7 M-Lok hand guard

Pistol Grip: CMMG A2

Receiver Extension: CMMG Pistol Receiver Extension w/Ambi Sling Plate

Trigger: CMMG Single Stage Mil-Spec Style

Trigger Guard: Integrated into lower

Finish: Hard Coat Anodized Receivers and Hand Guard

Weight: 5 lbs 2 oz (Unloaded)

Overall Length: 23.9"


CMMG’s 10mm BANSHEE is the first AR capable of reliably running the wide assortment of 10mm ammunition on the market. It uses CMMG’s patent pending Radial Delayed Blowback operating system to significantly reduce felt recoil. The 10mm BANSHEE ships with one 30-round SGM Magazine (Glock Magazine Compatible) and uses CMMG’s patented bolt catch linkage to hold the bolt open after the last round.


The 10mm BANSHEE is available in Short Barreled Rifle (SBR) and AR pistol configurations. With a variety of different options 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.


Each 10mm BANSHEE comes with an H3 buffer and a 3.5oz tuning weight pre-installed in the carrier. A standard carbine buffer is also included in the box – ideal for those running lighter loads.