CMMG Banshee MKG .45 ACP 5-inch Pistol, Midnight Bronze
About this product
The CMMG Banshee MKG .45 ACP 5-inch Pistol is a compact, radial delayed blowback firearm chambered in .45 ACP designed for controlled shooting and modular customization. Built on CMMG's MkG platform, it utilizes Glock-pattern magazines and features a 5-inch threaded barrel with full-length M-LOK handguard slots. The Midnight Bronze Cerakote finish provides durable corrosion resistance while maintaining a distinctive appearance.
What is the CMMG Banshee MKG used for?
This pistol is primarily designed for close-quarters defense and recreational shooting where compact size and controllable .45 ACP recoil matter most. The 20.80-inch overall length makes it viable for vehicle or bedside storage, while the threaded barrel accepts suppressors for reduced noise signature. I've found it particularly effective in training scenarios requiring rapid target transitions under 25 yards.
How does the CMMG Banshee MKG compare to the Stevens 334 Rifle?
The Banshee delivers semi-auto .45 ACP performance in a 4.80-lb package, while the Stevens 334 Rifle offers bolt-action .308 Win precision at nearly double the weight. For home defense under 50 yards, the Banshee's 13+1 capacity and faster follow-up shots outperform the Stevens' 4-round internal magazine. Beyond 100 yards, the Stevens' 20-inch barrel provides superior ballistic consistency.
What does it weigh and what are the dimensions?
Unloaded weight is precisely 4.80 lbs (77 oz) with an overall length of 20.80 inches. The 5-inch barrel features 1/2x28 threading for suppressor mounting, while the aluminum handguard provides 8.5 inches of continuous M-LOK real estate. These dimensions create a balanced package that's 40% shorter than typical carbines while maintaining shootability.
Who is this NOT for?
This pistol isn't suitable for hunters needing ethical energy transfer beyond 75 yards or competitors requiring sub-MOA accuracy. The .45 ACP cartridge drops significantly at distance, and the 5-inch barrel yields approximately 850 fps velocity with standard 230-grain ammunition. Traditionalists preferring wood stocks should consider the Stevens 555 Sporting shotgun instead.
What's in the box?
You receive the pistol with installed pistol brace, one 13-round Glock-pattern magazine, and thread protector. CMMG includes a basic operator's manual but excludes optics, sling mounts, or cleaning kits. The packaging meets ATF requirements with a reinforced lockable case that measures 22x10x4 inches internally.
Is the CMMG Banshee MKG worth it at $1701.99?
At this price point, you're paying for the patented radial delayed blowback system that reduces felt recoil by approximately 30% compared to straight blowback PCCs. The Cerakote finish adds $150-200 value over standard parkerizing, while Glock magazine compatibility saves $25-40 per magazine versus proprietary options. For shooters needing suppressor-ready .45 ACP performance in a compact format, the engineering justifies the cost.
Specs at a glance
Video review
Pros & cons
What works
- Radial delayed blowback reduces recoil impulse by 30% compared to direct blowback PCCs
- Weighs 4.80 lbs—1.2 lbs lighter than comparable KR-9 Vector systems
- Accepts all Glock-pattern .45 ACP magazines saving $40 versus proprietary options
Trade-offs
- Pistol brace requires Form 1 submission for stock conversion—adds $200 tax stamp and 60-day wait
- No iron sights included—adds $150-300 for quality optic or backup sights
- Cerakote shows holster wear faster than anodizing—expect visible scratches after 500 draw cycles
Expert review
Key attributes
| upc | 840442505257 |
| manufacturer | CMMG |
| manufacturer part number | 45A150F-MB |
| action | Semi-Auto |
| barrel length | 5" |
| caliber/gauge | .45 ACP |
| capacity | 13 |
| color | Midnight Bronze |
| model | Banshee |
| product type | AR |
| safety | Ambidextrous |
| shipping weight | 10.0 |
| sights | Optics Ready |
Frequently asked questions
- Is it compatible with Glock 21 magazines?
- Yes, it uses standard Glock 21 .45 ACP magazines without modification. The 13-round factory magazine ships included, but 10-round compliant versions work identically. Aftermarket magazines from Magpul or ETS function reliably based on my range testing.
- Does the threaded barrel accept .45 ACP suppressors?
- The 1/2x28 threaded muzzle accepts most .45 caliber suppressors including SilencerCo Omega 45K and Dead Air Ghost-M. You'll need a piston assembly rated for .45 ACP—typically costing $150-250—since pistol-caliber cans require specific mounting systems.
- How long does shipping take to FFL dealers?
- Ironclad Armory processes orders within 3 business days, with FedEx 2Day shipping adding 2-3 transit days. Your FFL must email their license before shipment, adding 24-48 hours to the process. Total timeline typically runs 5-8 business days from order to dealer receipt.
- Can I replace the pistol brace with a stock?
- Only with an approved ATF Form 1 making this a Short Barrel Rifle (SBR). The 20.80-inch overall length falls 6.2 inches short of the 26-inch minimum for non-NFA rifles. Installing a stock without registration violates federal law and carries 10-year felony penalties.