Description
There's something satisfying about a .45 ACP in an AR platform, and the CMMG Zeroed Banshee MkG delivers it the right way. Instead of the harsh clunk you get from straight blowback pistol caliber guns, CMMG's Radial Delayed Blowback system uses an angled bolt design to slow the action down, which takes a lot of the sting and bolt slap out of every shot. The result is a big-bore pistol that cycles smoother and shoots softer than you'd expect from the caliber.
Zeroed Banshee MkG Features That Matter
This is part of CMMG's Zeroed line, which means it comes loaded with their upgraded controls out of the box: an ambidextrous charging handle, a single-stage drop-in trigger, a 60/90 ambi safety selector, and the Zeroed pistol grip. The 6.5 inch barrel wears a durable black nitride finish and comes threaded, so adding a muzzle device or can down the road is simple. The oversized M-LOK handguard is a standout too, with a 1.72 inch internal diameter that lets most modern suppressors tuck up underneath it for a cleaner, shorter overall package. Included silicone SD-style covers snap into the M-LOK slots wherever you want them to keep your support hand comfortable.
Feeds From Glock Mags, Built to Run
The MkG lower accepts Glock pattern .45 ACP magazines, and a 13 round mag comes in the box. If you already own a Glock 21 or similar, your spare mags are ready for range day. Out back, the CMMG RipBrace keeps the whole setup compact and quick to deploy, and the full length Picatinny top rail gives you plenty of real estate for a red dot or backup sights.
Why the Banshee MkG in Midnight Bronze Stands Out
The Midnight Bronze Cerakote receiver set gives this one a look that separates it from the sea of plain black pistols on the wall, and since most .45 ACP ammo runs subsonic on its own, this platform is a natural fit for suppressed use whenever you decide to go that route. It's backed by CMMG's lifetime quality guarantee, which says a lot about how they build them.
Key Specifications
- Manufacturer: CMMG
- Model: Zeroed Banshee MkG
- Manufacturer Part Number: 45AEA70-MB
- UPC: 840442509187
- Caliber: .45 ACP
- Action: Semi-Auto, Radial Delayed Blowback
- Capacity: 13+1
- Barrel Length: 6.5"
- Barrel Finish: Black Nitride, Threaded Muzzle
- Receiver Finish: Midnight Bronze Cerakote
- Handguard: M-LOK, 1.72" Internal Diameter
- Brace: CMMG RipBrace, Black Polymer
- Safety: CMMG Zeroed 60/90 Degree Ambidextrous
- Trigger: Single-Stage Drop-In
- Magazine Compatibility: Glock Pattern .45 ACP
- Optics Mounting: Picatinny Top Rail
What’s Included
- CMMG Zeroed Banshee MkG 45 ACP pistol
- One 13-round Glock pattern magazine
- Silicone SD-style M-LOK handguard covers
Frequently Asked Questions
What magazines does the CMMG Zeroed Banshee MkG 45 ACP use?
It runs Glock pattern .45 ACP magazines, the same ones used by the Glock 21. One 13-round magazine comes included, and higher capacity Glock pattern .45 mags will work as well. If you already own a Glock in .45, your existing mags are good to go.
Will a suppressor fit under the handguard on this Banshee MkG?
In most cases, yes. The Zeroed M-LOK handguard has a 1.72 inch internal diameter, which clears the majority of modern pistol caliber suppressors so they tuck underneath for a shorter overall package. Just keep in mind that mounting M-LOK accessories in the slots directly over a tucked can will eat into that clearance.
How does Radial Delayed Blowback compare to regular blowback in a 45 ACP AR pistol?
It's a noticeable upgrade in shooting comfort. Standard blowback guns rely on a heavy bolt and stiff spring, which makes for a sharp, clunky recoil impulse. CMMG's system uses angled bolt lugs that rotate and delay the action opening, so the Banshee cycles with a lighter bolt group and shoots smoother with less felt recoil.
Does the CMMG Zeroed Banshee MkG come with upgraded controls?
It does. The Zeroed line ships with CMMG's premium parts already installed, including an ambidextrous charging handle, a single-stage drop-in trigger, a 60/90 degree ambi safety selector, and the Zeroed pistol grip. There's nothing you need to swap out to get a well-equipped setup from day one.




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