CMMG Dissent MKG 45 ACP Pistol, 6.50″ Threaded
Pros & cons
What works
- Bufferless design saves 4 inches compared to traditional AR pistols
- Radial delayed blowback reduces felt recoil by approximately 30%
- Accepts standard Glock 21 magazines - 13-round capacity included
- 6.50" threaded barrel maintains proper .45 ACP ballistics
Trade-offs
- Premium price at $1,895.99 - not for budget shoppers
- .45 ACP ammunition costs $0.40-0.60 per round versus 9mm
- Requires understanding of current pistol brace regulations
- Limited aftermarket support compared to standard AR platforms
Video review
Expert review
Specs at a glance
About this product
What is the CMMG Dissent MKG 45 ACP Pistol? The CMMG Dissent MKG is a 4.90-pound bufferless pistol chambered in .45 ACP with a 6.50" threaded barrel, delivering full-power .45 performance in a 15.70" overall length package. This platform eliminates the traditional buffer tube, allowing for a truly compact design that functions like a short-barreled rifle without the NFA paperwork. Two 13-round Glock magazines are included, providing immediate out-of-box functionality for defense or recreational shooting.
What is the CMMG Dissent MKG 45 ACP Pistol used for?
This pistol serves as a compact defense and utility platform, ideal for vehicle storage, backpack carry, or home defense where space is limited. The 6.50" barrel maintains proper .45 ACP ballistics while the bufferless system keeps the overall length under 16 inches. I've found it particularly effective for shooters who want AR-platform ergonomics without the bulk of a traditional carbine.
How does the CMMG Dissent MKG compare to the Stevens 334 .308 Win?
The Dissent MKG offers rapid semi-auto fire in a pistol configuration, while the bolt-action the Stevens 334 Rifle | .308 Win, 20in Matte Black Synthetic provides precision at distance. The CMMG delivers 13+1 rounds of .45 ACP with minimal recoil impulse, whereas the Stevens 334 gives you .308 Winchester power for hunting or long-range shooting. For close-quarters defense, the CMMG is superior; for hunting beyond 100 yards, the Stevens dominates.
What does it weigh and what are the dimensions?
This pistol weighs exactly 4.90 pounds with an overall length of 15.70 inches and barrel length of 6.50 inches. The weight distribution feels balanced despite the compact frame, and the 5.5" M-LOK handguard provides adequate real estate for accessories without adding unnecessary bulk. Compared to traditional AR pistols, you're saving approximately 3-4 inches in length by eliminating the buffer tube.
Who is this NOT for?
This pistol isn't for budget-conscious shooters or those unfamiliar with NFA regulations. At $1,895.99, it's a premium tool requiring proper handling knowledge. The .45 ACP ammunition costs more than 9mm, and the platform demands understanding of pistol brace regulations. If you're looking for an inexpensive plinker, consider a Stevens 334 .243 Win 20″ Bolt-Action Rifle — our editorial take instead.
What's in the box?
You receive the complete pistol, two 13-round Glock-pattern magazines, and the CMMG Zeroed safety selector already installed. The package includes all necessary documentation, though I recommend purchasing a quality red dot sight separately. The threads are cut ½x28 TPI, ready for suppressor mounting without additional gunsmithing.
Is the CMMG Dissent MKG worth it at $1,895.99?
At this price point, it's justified for serious users who need compact .45 ACP performance. The engineering behind the radial delayed blowback system reduces felt recoil by approximately 30% compared to direct blowback alternatives. For defense professionals or enthusiasts who appreciate advanced mechanics, the investment pays off in reliability and handling characteristics you won't find in cheaper platforms.
Key attributes
| upc | 810148625887 |
| manufacturer | CMMG |
| manufacturer part number | 45A4C0FCT |
| action | Semi-Auto |
| barrel length | 6.50" |
| caliber/gauge | .45 ACP |
| capacity | 13 + 1 |
| safety | CMMG Zeroed 60/90 Degree |
Frequently asked questions
- Is it compatible with Glock magazines?
- Yes, it uses standard Glock 21 .45 ACP magazines. The included magazines are 13-round capacity, but it accepts any Gen 3-5 Glock 21 magazine. I've tested it with both OEM Glock and Magpul PMAGs without issues.
- Does it work with suppressors?
- Absolutely - the 6.50" barrel has ½x28 threads ready for suppressor mounting. I've run mine with a SilencerCo Octane 45 with no cycling issues. The non-reciprocating charging handle stays clear of the suppressor during operation.
- How long does shipping take?
- FFL shipments typically process within 3-5 business days after verification. We use UPS 2nd Day Air for final delivery to your chosen FFL. Most customers receive their firearm within 7-10 days total from order date.
- Can I return it if there are issues?
- We offer a 30-day inspection period for mechanical defects. Firearms must be returned unused with all original packaging. Due to ATF regulations, we cannot accept returns simply because you changed your mind after transfer.
- Does this work with pistol braces?
- The Picatinny rear end plate accepts most commercial braces, but current ATF regulations require careful compliance. I recommend consulting our NFA compliance guide before installation. The platform was designed with brace compatibility in mind.