Description
The CMMG Dissent BR4 is a modern 5.56 NATO carbine built for reliable performance on the range, in training, and out in the field. It’s chambered in .223 Rem / 5.56 NATO and centers on a 16.10-inch black nitride threaded barrel, paired with a coyote tan Cerakote aluminum receiver that carries an integral Picatinny rail. The rifle ships with a Magpul SGA black synthetic stock and two 10-round PMAGs, keeping it compliant where capacity matters. This is a straightforward, no-nonsense carbine for shooters who need something that runs without fuss and holds up season after season.
| Manufacturer | CMMG |
|---|---|
| Model | Dissent BR4 |
| Material | Aluminum receiver, synthetic stock |
| Compatibility | AR-15 lower receivers (standard pattern) |
| Finish | Coyote tan Cerakote receiver, black nitride barrel |
| Weight | Approx. 6.8 lbs (per manufacturer specs) |
| Condition | New |
Key Features
- Black Nitride Threaded Barrel: The 16.10-inch barrel uses a black nitride finish that resists corrosion and fouling, meaning less cleaning and more consistent accuracy shot after shot.
- Integral Picatinny Rail: The receiver top is machined with a full-length Picatinny rail, giving you a solid mount for optics, red dots, or backup irons without extra adapters.
- Magpul SGA Stock: The Magpul SGA synthetic stock provides a secure cheek weld and adjustable length of pull, so you can dial in fit whether you’re in heavy cover or at the bench.
- Cerakote Coyote Tan Finish: The aluminum receiver is coated in coyote tan Cerakote, which cuts glare and holds up to scratches from gear and brush better than bare aluminum.
- Two 10-Round PMAGs Included: Ships with two Magpul 10-round PMAGs right in the box, so you’re ready to load and go without hunting down mags that meet capacity limits.
Who It’s For
This carbine is built for hunters who want a light, reliable rifle for varmint or predator control, and for shooters who train regularly and need a gun that runs with minimal drama. If you’re looking for a 5.56 that doesn’t weigh you down on a long stalk and can handle a suppressor or muzzle device out of the box, the Dissent BR4 fits right in.
Pros & Cons
- Pro: The black nitride barrel is tough and easy to maintain — Per CMMG specs, the bore is treated to resist wear and corrosion, which adds longevity.
- Pro: Includes two 10-round PMAGs, saving you from buying extra mags for compliant states or ranges.
- Con: The 16.10-inch barrel is on the shorter side for a full-size rifle, which means a bit more muzzle blast and velocity loss compared to an 18- or 20-inch barrel.
Comparison
| Feature | CMMG Dissent BR4 | Geissele Super Duty 16-inch | Zev Technologies OZ9C |
|---|---|---|---|
| Barrel Length | 16.10 inches | 16 inches | 16 inches (pistol variant) |
| Finish | Coyote tan Cerakote / black nitride | Black anodized / chrome-lined | Black DLC / Cerakote |
| Stock | Magpul SGA (adjustable) | Geissele Super 42 buffer / carbine stock | Zev modular grip (pistol) |
| Magazines Included | Two 10-round PMAGs | One 30-round PMAG | Two 17-round mags |
| Weight | ~6.8 lbs | ~7.2 lbs | ~2.0 lbs (pistol) |
| Price | $1,922.15 | ~$1,800 | ~$1,600 |
The Dissent BR4 lands between the Geissele Super Duty and the Zev OZ9C in price, offering a lighter build than the Geissele and a more traditional rifle layout than the Zev pistol. The Geissele gives you a chrome-lined barrel and a proven buffer system, while the Dissent BR4 focuses on a corrosion-resistant nitride barrel and a compliant-friendly magazine setup.
FAQ
What caliber is the CMMG Dissent BR4 chambered in?
It is chambered in .223 Rem / 5.56 NATO, so you can run either cartridge interchangeably. The 5.56 NATO chamber handles higher-pressure rounds safely.
Does the barrel come threaded for a suppressor?
Yes, the 16.10-inch barrel is threaded, so you can attach a suppressor, muzzle brake, or flash hider directly without additional gunsmithing.
What magazines does the Dissent BR4 use?
It accepts standard AR-15 pattern magazines, and the box includes two Magpul 10-round PMAGs. These work in all 50 states and are compatible with most AR-15 lowers.
Is the stock adjustable?
Yes, the Magpul SGA stock has an adjustable length of pull, so you can set it for your frame or for shooting with heavy clothing.
Can I mount optics directly on the receiver?
Yes, the integral Picatinny rail runs the full length of the receiver, so you can mount scopes, red dots, or backup sights without any adapter.
✅ Nationwide delivery (all 50 states)
✅ Ships 1-2 business days
✅ 30-day returns
✅ Secure checkout
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Last updated: April 2026
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