The CMMG Dissent BR4 9mm Luger 16.10" 10+1 is a compact AR-style carbine built for shooters who want reliable pistol-caliber performance in a familiar platform. It pairs a 16.10-inch black nitride steel barrel with a Magpul SGA stock, making it a solid choice for range training, PCC competition, and home defense practice. Chambered in 9mm, this rifle lets you use affordable, widely available ammunition while keeping the handling characteristics of a traditional AR.
| Manufacturer | CMMG (per manufacturer specs) |
|---|---|
| Model | Dissent BR4 |
| Material | Aluminum receiver, steel barrel |
| Compatibility | 9mm Luger ammunition, standard AR-style accessories |
| Finish | Black nitride barrel, black anodized receiver |
| Weight | Approximately 6.5 lbs (per manufacturer specs) |
| Condition | New |
Key Features
- 16.10-inch black nitride steel barrel: This length balances maneuverability with velocity, giving you reliable cycling and accuracy for 9mm rounds at typical training distances.
- 13.50-inch M-LOK handguard: You can attach lights, grips, or lasers without adding bulk, keeping the carbine slim and easy to handle for newer shooters.
- Magpul SGA black polymer stock: The adjustable design lets you fit the rifle to different body sizes, which is especially helpful when teaching family members or youth shooters.
- Single-stage trigger: A crisp, predictable pull helps you focus on fundamentals like sight alignment and trigger control, reducing flinching.
- 10+1 capacity: This magazine capacity is ideal for range sessions and compliance in restricted states, while still giving you enough rounds for practical drills.
Who It’s For
This carbine is built for families and beginners stepping into pistol-caliber shooting. It’s also a strong pick for PCC competitors who want a lightweight, accurate platform without the recoil of a rifle cartridge. If you’re teaching a new shooter to handle an AR-style gun, the 9mm chambering keeps noise and kick manageable.
Pros and Cons
- Pros: Lightweight build (about 6.5 lbs), affordable 9mm ammo, adjustable stock fits various shooters, M-LOK handguard for accessories, reliable single-stage trigger.
- Cons: The 10-round magazine may feel limiting for high-volume drills or competition stages where larger capacities are allowed.
Comparison: CMMG Dissent BR4 vs. Zev Technologies OZ9 Carbine vs. Geissele Super Duty 9mm
| Feature | CMMG Dissent BR4 | Zev Technologies OZ9 Carbine | Geissele Super Duty 9mm |
|---|---|---|---|
| Barrel Length | 16.10 inches | 16 inches | 16 inches |
| Weight | ~6.5 lbs | ~7.2 lbs | ~6.8 lbs |
| Stock | Magpul SGA (adjustable) | Magpul MOE (fixed) | Geissele (adjustable) |
| Trigger | Single-stage | Two-stage | Single-stage |
| Capacity | 10+1 | 10+1 | 10+1 |
| Price | $1,854.21 | $2,100 | $1,950 |
The CMMG Dissent BR4 offers a lighter build and lower price than the Zev OZ9 Carbine and Geissele Super Duty, making it a budget-friendly entry for families. The Zev includes a two-stage trigger for precision, while the Geissele has a premium adjustable stock. For most beginners and casual shooters, the CMMG’s single-stage trigger and Magpul stock provide enough adjustability and performance without the extra cost.
FAQ
What is the barrel length on the CMMG Dissent BR4?
The barrel is 16.10 inches, which meets minimum length requirements for a rifle and gives you good velocity with 9mm ammunition.
Does this rifle come with a magazine?
Yes, it includes one 10-round magazine. You can use standard Glock-compatible 9mm magazines if you want more options later.
Is the stock adjustable for different shooters?
Yes, the Magpul SGA stock has multiple positions so you can adjust length of pull for youth or smaller-framed shooters.
Can I use this for PCC competition?
Yes, the 16.10-inch barrel and single-stage trigger work well for USPSA or Steel Challenge divisions that allow 9mm carbines.
What is the weight of the CMMG Dissent BR4?
It weighs about 6.5 pounds empty, making it easy to handle for extended range sessions.
Ready to Add This Carbine to Your Collection?
Order the CMMG Dissent BR4 9mm Luger 16.10" 10+1 today and start training with a reliable, beginner-friendly platform. Shop more AR Rifles or browse our Pistol Caliber Carbines collection for similar options. Stock up on 9mm ammunition to pair with your new rifle.
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Last updated: April 2026
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This CMMG Dissent BR4 9mm Luger 16.10″ 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.
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