CMMG Banshee Mk10
CMMG Inc. · Personal Defense Weapon · In Production · 2020
Also known as: Banshee 10mm, Mk10 Banshee, CMMG Mk10
Overview
The CMMG Banshee Mk10 is an AR-pattern personal defense weapon pistol/SBR chambered in 10mm Auto, built around CMMG's proprietary Radial Delayed Blowback (RDB) action, which uses angled bolt lugs that rotate to delay the action opening under the high pressure of the 10mm cartridge. It feeds from Glock 20/29-pattern magazines and ships with 30-round SGM Tactical magazines, making it a companion carbine to Glock 10mm pistols. The standard configuration uses an 8-inch 4140 chrome-moly steel barrel with a 1:16 twist, 7075-T6 aluminum forged upper and lower receivers, an M-LOK handguard, and an SB Tactical SBA3 adjustable arm brace, finished in hardcoat anodizing under Cerakote in a range of colors.
Specifications
| Weight (empty) | 2495 g (88.0 oz) |
| Overall Length | 605 mm (23.82") |
| Barrel Length | 203 mm (7.99") |
| Action Type | Delayed Blowback |
| Firing Mechanism | Hammer Fired |
| Trigger Type | Single Stage |
| Magazine Capacity | 30 rounds |
| Magazine Type | Detachable Box |
| Effective Range | 100 m (109 yd) |
| Barrel Rifling | Right Hand |
| Rifling Twist | 406 mm (15.98") |
| Frame Material | Aluminum |
| Barrel Material | Steel |
| Stock Material | Polymer |
| Finish | Cerakote |
Calibers
- 10mm Auto · primary — also known as 10mm, 10mm Automatic
Features
- Firing modes: Semi Automatic
- Feed systems: Detachable Box Magazine Glock 20 29 Pattern, Sgm Tactical 30rd Glock Pattern
- Safety mechanisms: Ambidextrous Ar15 Selector, Manual Safety
- Features: Radial Delayed Blowback, Ar15 Pattern, Ambidextrous Controls, 60 Degree Safety Throw, M Lok Handguard, Top Picatinny Rail, 1 2x28 Threaded Muzzle, Suppressor Compatible, Sb Tactical Sba3 Brace, Hinged Grip Storage Compartment, Polymer Dust Cover, Glock Pattern Magazine Compatible
Variants
- Banshee Mk10 Pistol 8" - Barrel Length
- Banshee Mk10 SBR 8" - Nfa Sbr
- Mk10 Rifle - Rifle Sister Model
Base model
Service history
Operators
- Civilian market · adopted 2020 · as Banshee Mk10
Production
Production years: 2020-present
Civilian-market firearm. No documented military or law enforcement adoption.
Origin
Country of origin: United States
Notes
Radial Delayed Blowback uses a rotating bolt head to mechanically delay unlocking - closest schema enum is `delayed_blowback`. Overall length is 23.8-27 in depending on the SBA3 brace setting; 605 mm reflects the collapsed length. Manufacturer/American Rifleman list 5.5 lb (~2495 g) unloaded. Ships with a heavier 3.4 oz bolt weight and extra buffer tuned for 10mm. SBR variant substitutes a RipStock for the pistol brace.
Background
CMMG added the 10mm Auto Mk10 to its Banshee line to answer demand for a hard-hitting AR-format PDW that shares magazines with Glock 10mm pistols such as the Glock 20 and Glock 29. Taming the high-pressure 10mm cartridge in an AR host required CMMG's proprietary Radial Delayed Blowback system, which it had already proven on smaller Banshee chamberings, making the Mk10 one of the few commercially successful AR-pattern 10mm carbine platforms.