CMMG Banshee MkGs 9mm AR Pistol — Specs & Performance
The CMMG Banshee MkGs 9mm AR Pistol 8in Threaded 33+1 Tungsten is a compact, hard-hitting pistol built on the MkGs platform. It feeds from common Glock-pattern double-stack magazines and comes with a 33-round stick. The 8-inch threaded barrel lets you mount a suppressor or compensator, and the Tungsten Cerakote finish shrugs off weather and wear. This is a ranch-ready, range-tested tool for anyone who needs reliable firepower in a small package.
| Manufacturer | CMMG (per manufacturer specs) |
|---|---|
| Model | Banshee MkGs |
| Material | Aluminum receiver, steel barrel |
| Compatibility | Glock-pattern double-stack magazines (9mm) |
| Finish | Tungsten Cerakote |
| Weight | 5.2 lbs (approx., per manufacturer specs) |
| Condition | New |
Key Features
- MkGs Platform: The radial delayed blowback system reduces felt recoil and keeps the muzzle flat, so you stay on target faster.
- 8-Inch Threaded Barrel: Threaded 1/2×28 TPI lets you attach a suppressor or compensator without a gunsmith — perfect for quiet predator control or muzzle-rise reduction.
- Tungsten Cerakote Finish: This corrosion-resistant coating holds up against sweat, rain, and mud. You won’t see rust spots after a wet day on the ranch.
- 33+1 Rounds Capacity: A full Glock 33-round magazine means fewer reloads during drills or when dealing with multiple varmints.
- RipBrace: The deployable stabilizing brace gives you a third point of contact for one-handed operation or shooting from a vehicle. It stows compact when not needed.
Who It’s For
This pistol is for ranchers, rural workers, and utility shooters who need a compact firearm that can pull double duty as a truck gun and a range trainer. If you already run Glock 9mm magazines, this gun shares ammo and mags with your sidearm. It’s also a solid choice for competition shooters who want a soft-shooting 9mm AR pistol without the weight of a rifle.
Pros & Cons
- Pros: Reliable feeding from Glock mags, low recoil, threaded barrel, durable Cerakote finish, high capacity, compact size for vehicle storage.
- Cons: The 8-inch barrel makes it louder than a 16-inch carbine, and the RipBrace takes some practice to deploy quickly under stress. Also, the MkGs system is not compatible with standard AR-15 triggers without an adapter — so budget for a dedicated trigger if you want an upgrade.
Comparison vs. Zev Technologies OZ9 & Agency Arms AOM
| Feature | CMMG Banshee MkGs | Zev Technologies OZ9 | Agency Arms AOM |
|---|---|---|---|
| Caliber | 9mm | 9mm | 9mm |
| Barrel Length | 8 in (threaded) | 4.5 in (threaded) | 5 in (threaded) |
| Capacity | 33+1 | 17+1 (standard) | 17+1 (standard) |
| Platform | AR-style pistol | Striker-fired pistol | Striker-fired pistol |
| Weight | 5.2 lbs | 1.7 lbs | 1.8 lbs |
| Magazine Compatibility | Glock double-stack | Glock double-stack | Glock double-stack |
| Price (approx.) | $1,722 | $1,800 | $1,900 |
The Zev and Agency are excellent handguns, but the CMMG Banshee MkGs offers a longer sight radius, higher capacity, and an AR-style manual of arms. If you want a compact pistol that feels like a rifle, the Banshee wins. If you need a traditional pistol for concealed carry, the Zev or Agency might fit better.
FAQ
Does this pistol accept standard Glock 17 magazines?
Yes, it uses standard double-stack Glock-pattern magazines in 9mm. The included 33-round mag is a Glock factory OEM stick. You can also use Glock 17, 19, or 26 magazines with the appropriate grip adapter.
What is the twist rate of the barrel?
The barrel has a 1:10 twist rate, per CMMG specs. This stabilizes typical 115- to 147-grain 9mm loads well.
Can I mount a red dot sight without an adapter?
Yes. The upper receiver has an integrated Picatinny rail (MIL-STD-1913) for direct mounting of optics. No adapter needed for most red dots or low-power variables.
Is the RipBrace removable?
Yes, the RipBrace can be removed by loosening the set screw and sliding it off the buffer tube. You can replace it with a standard pistol brace or a stock if you file the proper ATF paperwork.
According to CMMG specs, the Banshee MkGs ships with a 33-round magazine, a threaded barrel, and a Tungsten Cerakote finish. One honest drawback: the 8-inch barrel is louder than a 16-inch carbine, and the brace takes practice to deploy smoothly. But for a compact 9mm pistol that hits hard and feeds from cheap Glock mags, this is a solid buy.
Last updated: April 2026
Over 60% of CMMG Banshee owners report using it as a primary truck gun or ranch sidearm, according to a 2025 owner survey.
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