CMMG Banshee MKGs 9mm Pistol 5in Armor Black
About this product
The CMMG Banshee MKGs 9mm Pistol 5in Armor Black is a compact AR-style pistol chambered in 9mm Luger that uses CMMG's proprietary radial delayed blowback system and Glock-pattern magazines. This platform bridges the gap between traditional handguns and carbines while maintaining pistol classification under current ATF guidelines. Built with billet 6061-T6 aluminum upper and forged 7075-T6 aluminum lower receivers, it represents a premium construction approach for serious shooters.
What is the CMMG Banshee MKGs used for?
The Banshee MKGs serves as a compact defensive and training platform where full-size rifles are impractical. Its 5-inch barrel and 33+1 capacity make it ideal for vehicle defense, close-quarters training, and as a suppressor host platform. The radial delayed blowback system reduces felt recoil by approximately 30% compared to direct blowback systems, while the Glock magazine compatibility ensures widespread magazine availability and training continuity.
How does the CMMG Banshee MKGs compare to the Stevens 334 Rifle?
The Banshee MKGs offers superior close-quarters maneuverability but sacrifices long-range precision compared to the Stevens 334 Rifle in .308 Win. Where the Stevens 334 delivers consistent sub-MOA accuracy at 200 yards, the Banshee's 5-inch barrel limits effective range to approximately 75 yards with standard 9mm ammunition. The Banshee excels in rapid engagement scenarios while the Stevens platform dominates precision shooting applications.
What does it weigh and what are the dimensions?
The Banshee MKGs weighs 5.2 pounds unloaded and measures 22.5 inches in overall length with the brace collapsed. Its 5-inch barrel keeps the package compact while the full-length M-LOK handguard provides 11 inches of accessory mounting surface. The 6-position RipBrace adjusts through a 3-inch range of length-of-pull settings, accommodating various shooter sizes and body armor configurations.
Who is this NOT for?
This platform is not suitable for beginners unfamiliar with NFA regulations or shooters seeking long-range precision. The pistol configuration requires careful attention to state laws regarding braces and overall length, while the 9mm chambering limits effective range to under 100 yards. Traditional shotgun users considering the Stevens 555 Sporting O/U 12 Gauge would find completely different ballistic characteristics and applications.
What's in the box?
The package includes the complete Banshee MKGs pistol, one 33-round Glock-pattern magazine, CMMG's ZEROED linear compensator installed, and the RipBrace assembly. Documentation includes ATF compliance paperwork and manufacturer's warranty information. Notably absent are iron sights or optics, requiring an additional $150-400 investment for immediate usability.
Is the CMMG Banshee MKGs worth it at $1693.99?
At $1693.99, the Banshee MKGs justifies its price through premium materials and specialized engineering that cheaper alternatives lack. The radial delayed blowback system alone represents $300-400 of value in reduced recoil and parts longevity compared to direct blowback AR-9 platforms. For shooters needing a compact, high-capacity 9mm platform with AR controls, this represents one of the most mechanically sophisticated options available without NFA registration.
Specs at a glance
Video review
Pros & cons
What works
- Radial delayed blowback reduces recoil 30% vs direct blowback systems
- Accepts any Glock-pattern magazine—33+1 capacity standard
- 5.2 lb weight—1.8 lb lighter than typical 9mm carbines
- 7075-T6 aluminum lower receiver—milspec durability
Trade-offs
- No sights included—requires $150-400 additional optics investment
- Pistol brace configuration—subject to changing ATF interpretation
- 5-inch barrel limits effective range to 75 yards with 9mm
- Premium price—$500-700 more than basic AR-9 platforms
Expert review
Key attributes
| upc | 840442504731 |
| manufacturer | CMMG |
| manufacturer part number | 99A290F-AB |
| action | Semi-Auto |
| barrel finish | Satin Black Cerakote |
| barrel length | 5'' |
| caliber/gauge | 9mm |
| capacity | 33+1-Round |
| color | Black |
| length | 3.5'' |
| magazine included | 1 x 33-Round |
| model | Banshee MKGs |
| product type | AR |
| safety | Thumb |
| shipping weight | 10.093 |
| sights | Optics Ready |
| thread pattern | 1/2"x28 |
Frequently asked questions
- Is it compatible with Glock 17 magazines?
- Yes, the Banshee MKGs uses standard Glock-pattern double-stack magazines including Glock 17, 19, and 33-round models. The magazine well accepts any Generation 3-5 Glock magazine without modification, though we recommend testing with your specific magazines for reliability.
- Does it work with SilencerCo Omega 9K suppressors?
- Absolutely—the 1/2×28 threaded barrel directly accepts SilencerCo Omega 9K and other 9mm suppressors with standard threading. We recommend using a fixed barrel spacer and checking alignment with an alignment rod before live fire, as with any suppressor installation.
- How long does shipping take to Montana?
- Firearms shipping to Montana typically requires 3-5 business days for processing and 2-3 days for transit via FedEx. All shipments require signature confirmation and transfer through an FFL holder, adding approximately 24-48 hours for background check completion upon arrival.
- Can I return it if I change my mind?
- Firearms purchases are final once transferred through an FFL, except for manufacturer defects. We inspect every firearm before shipment and provide a 30-day warranty period for functional issues. Non-functional returns must be coordinated through CMMG's warranty service center in Missouri.