CMMG
CMMG Banshee 9mm (Mk17)
Radial-delayed AR-pattern 9mm platform using SIG P320 / M17-style magazines.
Key Highlights
- •SIG P320 magazine platform
- •Radial-delayed
- •AR-style controls
Specifications
- Price
- $1,499
- Weight
- 5 lb 2 oz
- Calibers
- 9mm
- Rail Type
- mlok
Capability Profile
0-10 Scale Across 8 Axes
Compatibility Tags
Overview
The CMMG Banshee Mk17 uses CMMG's Radial Delayed Blowback system in a 9mm platform built around SIG P320 / M17-pattern magazines. CMMG's own platform guide identifies Mk17 as the SIG P320 magazine family.
The Mk17 shares the soft-shooting, suppressor-friendly appeal of CMMG's 9mm delayed system. Radial Delayed Blowback reduces bolt velocity and felt recoil compared with simple blowback designs, making follow-up shots easier and extended shooting sessions more pleasant.
CMMG offers Banshee configurations with different barrel lengths and furniture packages, so buyers should verify exact SKU specs before checkout. For shooters who want the Banshee experience but already own SIG P320 magazines, the Mk17 is the more logical CMMG platform than the Glock-mag MkGs.
Key Features
- Radial Delayed Blowback operating system
- SIG P320 / M17-pattern magazine platform
- AR-15 controls and ergonomics
- Suppressor-friendly delayed system
- Billet aluminum receivers
- M-LOK handguard
- Premium fit and finish
- Ambi charging handle
Pros
- +Exceptionally soft shooting
- +Excellent suppressed performance
- +Shares magazines with SIG P320 / M17 ecosystem
- +Premium build quality
- +Familiar AR-15 controls
- +Reliable with varied ammunition
Cons
- −Premium price point
- −SIG P320 magazines are more expensive than Glock-pattern 9mm mags
- −Proprietary BCG
- −Heavier than direct blowback
- −Magazine investment required
Detailed Specifications
- caliber
- 9mm
- Barrel Length
- Varies by Banshee configuration; 5-inch and 8-inch examples are common references
- Overall Length
- 24 inches (collapsed)
- weight
- 5.1 lbs
- Gas System
- Radial Delayed Blowback
- barrel
- 4140 Chrome Moly, nitride finish
- handguard
- M-LOK
- trigger
- Mil-spec single-stage
- msrp
- Configuration dependent; $1,499 retained as representative baseline
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