The CMMG Dissent BR4 30A650ACT in 300 AAC Blackout with a 16.10-inch barrel and 10+1 capacity is a purpose-built carbine that blends everyday handling with real-world capability for hunting, precision target work, and home defense. It ships with a zeroed single-stage trigger, two Magpul 10-round PMAGs, and a Magpul SGA stock—ready to shoot right out of the box.
| Manufacturer | CMMG |
|---|---|
| Model | Dissent BR4 30A650ACT |
| Material | Aluminum receiver, Black Nitride barrel |
| Compatibility | 300 AAC Blackout ammunition |
| Finish | Coyote Tan Cerakote receiver |
| Weight | Approx. 6.8 lbs (per manufacturer specs) |
| Condition | New |
Key Features
- 16.10-inch Black Nitride Barrel — WHY IT MATTERS: The nitride finish increases barrel life and corrosion resistance, so you get consistent accuracy round after round, even in wet conditions.
- Full-Length Picatinny Rail — WHY IT MATTERS: You can mount optics, lights, or lasers exactly where you need them without adapters, making setup fast and simple for any shooting scenario.
- Magpul SGA Stock — WHY IT MATTERS: The adjustable length of pull and cheek riser let smaller or younger shooters get a proper cheek weld, improving accuracy and comfort at the range.
- Zeroed Single-Stage Trigger — WHY IT MATTERS: A clean, predictable trigger pull helps new shooters learn trigger control and keeps experienced shooters on target without surprises.
- Two Magpul 10-Round PMAGs Included — WHY IT MATTERS: Reliable feeding from the start, plus extra magazines mean less downtime reloading during practice or a hunt.
Who It’s For
This carbine is built for families who want one rifle that does it all—home defense, plinking, and hunting. It’s also ideal for youth shooters graduating from .22 LR to a centerfire caliber, thanks to the adjustable stock and manageable recoil of .300 Blackout. Beginners will appreciate the zeroed trigger and included magazines, while experienced shooters get a purpose-built platform for suppressed use or short-range precision.
Pros / Cons
- Pro: Ready out of the box with zeroed trigger and two magazines—no extra purchases needed.
- Pro: Coyote Tan Cerakote finish resists scratches and weather, keeping the rifle looking good for years.
- Cons: The 10-round magazine capacity may be limiting for some shooters; check your local laws before ordering.
Comparison
| Feature | CMMG Dissent BR4 | Geissele Super Duty 300 BLK | Zev Technologies OZ9C-X |
|---|---|---|---|
| Caliber | 300 AAC Blackout | 300 AAC Blackout | 9mm (pistol) |
| Barrel Length | 16.10 inches | 16 inches | 4.5 inches |
| Stock | Magpul SGA adjustable | Geissele Super 42 buffer | None (pistol) |
| Finish | Coyote Tan Cerakote | Black anodized | Black DLC |
| Trigger | Single-stage, zeroed | Geissele SSA-E two-stage | Flat-faced single-stage |
| Capacity | 10+1 | 30+1 (standard mag) | 15+1 |
| Price | $1,922.15 | ~$2,100 | ~$1,600 |
According to CMMG specs, the Dissent BR4 is designed to run reliably with both supersonic and subsonic .300 Blackout loads. One honest drawback is the 10-round magazine capacity; if you live in a state without magazine restrictions, you may want to pick up standard-capacity PMAGs separately.
FAQ
Is the CMMG Dissent BR4 compatible with standard AR-15 parts?
Yes, the Dissent uses a standard AR-15 lower receiver and accepts most AR-15 triggers, stocks, and grips. The upper is unique to CMMG’s Dissent system, but the lower is fully interchangeable.
What ammunition does this rifle shoot best?
It cycles both supersonic and subsonic .300 AAC Blackout ammunition reliably. For hunting, use 110-125 grain supersonic loads. For suppressed shooting, 220 grain subsonic rounds work well.
Can I mount a suppressor on the barrel?
Yes, the 16.10-inch barrel is threaded (5/8×24 thread pitch) and comes with a standard muzzle device. Just add a compatible suppressor and check your local laws.
Is this rifle suitable for a beginner shooter?
Absolutely. The adjustable Magpul SGA stock lets you fit the rifle to smaller shooters, and the .300 Blackout has less recoil than .308 or 6.5 Creedmoor. The zeroed trigger helps new shooters focus on sight alignment.
Does it come with a case or cleaning kit?
The rifle ships in a cardboard box with two Magpul 10-round PMAGs and a manual. A soft case or hard case is not included, but we recommend adding one for safe transport.
Order with Confidence
- ✅ Nationwide delivery (all 50 states)
- ✅ Ships 1-2 business days
- ✅ 30-day returns
- ✅ Secure checkout
Last updated: April 2026
According to NSSF data, .300 AAC Blackout rifles represent over 12% of AR-15 platform sales in the U.S., making this caliber one of the fastest-growing options for versatile shooting.
Explore more options in our AR Rifles category, or check out AR Uppers and AR Lowers for custom builds.
Buy Firearms Online – Reliable & Affordable
This CMMG Dissent BR4 30A650ACT 300 AAC Blackout 16.10in 10+1 is ideal for shooters looking to buy guns online with confidence. Built with precision engineering and tested performance, it’s a top-tier choice whether you're looking for home defense, sport shooting, or a trusted everyday carry.
Why Choose the CMMG Dissent BR4 30A650ACT 300 AAC Blackout 16.10in 10+1?
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Shipping & Return Policy
- 📦 Fast shipping within 1–3 business days
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