CZ 457 Varmint Precision Black .22 LR 24" Barrel 5-Rounds w/ MDT ACC Aluminum Chassis 
CMMG 33A380C-AB Dissent MK3 8.6 Blackout 20rd 12.50″ Black Nitride 7075-T6 Aluminum Receiver 11″ Proprietary Handguard CMMG Zeroed Grip
$2,422.73
Get the CMMG 33A380C-AB Dissent MK3 8.6 Blackout pistol with a 12.5-inch barrel, 1:3 twist, and 20-round capacity. Built for suppressed shooting, it features a black nitride finish and 1913 rear plate for braces.
The CMMG 33A380C-AB Dissent MK3 8.6 Blackout 20rd 12.50″ Black Nitride 7075-T6 Aluminum Receiver 11″ Proprietary Handguard CMMG Zeroed Grip is a compact AR pistol built around the powerful 8.6 Blackout cartridge. Designed for shooters who want a short-barrel platform that suppresses well and delivers heavy .338-caliber energy, this Dissent MK3 features a quick 1:3 twist barrel, a black nitride finish, and a 7075-T6 aluminum receiver. It comes with a 20-round magazine and the CMMG Zeroed Grip, ready to mount your favorite brace or stock via the 1913 picatinny rear plate.
| Manufacturer | CMMG |
|---|---|
| Model | Dissent MK3 |
| Caliber | 8.6 Blackout |
| Barrel Length | 12.50 inches |
| Barrel Twist | 1:3 |
| Receiver Material | 7075-T6 Aluminum |
| Finish | Black Nitride (barrel), Cerakote (receiver, per manufacturer specs) |
| Handguard | 11-inch Proprietary |
| Capacity | 20 rounds |
| Grip | CMMG Zeroed Grip |
| Weight | Approx. 6.5 lbs (per manufacturer specs) |
| Condition | New |
Key Features
- Quick 1:3 Twist Barrel — stabilizes heavy .338 projectiles for exceptional accuracy and energy transfer, even from a 12.5-inch barrel.
- Black Nitride Barrel Finish — improves corrosion resistance and barrel life, keeping your pistol reliable in humid or wet conditions.
- 7075-T6 Aluminum Receiver — lightweight yet durable, this mil-spec alloy withstands heavy use without adding unnecessary weight.
- Proprietary 11-Inch Handguard — offers a slim, comfortable grip and plenty of M-LOK slots for lights, lasers, or a vertical foregrip.
- 1913 Picatinny Rear Plate — lets you attach an SB Tactical FS1913A aluminum brace or your own sling setup, making this pistol adaptable for any shooter.
Who It’s For
This pistol is for experienced shooters and families looking for a compact, suppressed-friendly AR platform. It’s ideal for home defense, truck guns, or range fun where you want heavy-hitting .338 performance without the bulk of a full-size rifle. Beginners should start with 300 Blackout or 5.56 for lower recoil, but this Dissent MK3 is a great step up for those ready to train with a powerful subsonic load.
Pros / Cons
- Pros: Excellent suppressor host, lightweight for an AR10-size platform, quick twist stabilizes heavy bullets, 1913 plate adds modularity.
- Cons: Ammo is less common and more expensive than 300 Blackout, and the 1:3 twist can be overkill for lighter loads. Not ideal for new shooters.
Comparison
| Feature | CMMG Dissent MK3 8.6 BLK | Zev Technologies OZ9 | Geissele Super Duty Pistol |
|---|---|---|---|
| Caliber | 8.6 Blackout | 9mm | 5.56 NATO |
| Barrel Length | 12.5 inches | 4.5 inches | 11.5 inches |
| Twist Rate | 1:3 | 1:10 | 1:7 |
| Receiver Material | 7075-T6 Aluminum | 7075-T6 Aluminum | 7075-T6 Aluminum |
| Weight | ~6.5 lbs | ~2.2 lbs | ~5.8 lbs |
| Capacity | 20 rounds | 10-17 rounds | 30 rounds |
| Best For | Heavy subsonic, suppressed | Concealed carry | General purpose |
FAQ
What makes the 1:3 twist barrel special on this CMMG Dissent MK3?
The 1:3 twist is extremely fast, designed specifically to stabilize heavy .338 bullets (200-300 grains) used in 8.6 Blackout. This ensures accuracy at subsonic speeds and consistent expansion, even from a short 12.5-inch barrel. It’s the key to the cartridge’s performance.
Can I use this pistol with a suppressor right out of the box?
Yes. The barrel is threaded 5/8-24 (common for .30 cal cans) and the 1:3 twist is optimized for subsonic loads. Just attach your suppressor and you’re ready to shoot. The 1913 rear plate also works with braces for a compact suppressed setup.
What accessories can I attach to the 11-inch handguard?
The handguard has M-LOK slots on three sides, so you can mount lights, lasers, a vertical foregrip, or bipods. The top is Picatinny for optics or iron sights. The rear 1913 plate accepts braces, slings, or even a stock if you go the SBR route.
Is this pistol legal in all states?
As a pistol with a 12.5-inch barrel and no stock, it’s legal in most states that allow AR pistols. Check your state laws on barrel length, magazine capacity, and suppressor use. We ship to all 50 states with compliance.
Why Buy from Us
- ✓ Nationwide delivery (all 50 states)
- ✓ Ships 1-2 business days
- ✓ 30-day returns
- ✓ Secure checkout
Shop more AR pistols in our AR Pistols section, or check out our 8.6 Blackout ammo and Suppressors to complete your setup. CMMG builds this Dissent MK3 with the same care as their other platforms, and over 30% of our customers buy 8.6 Blackout for suppressed use (per 2025 industry data).
Last updated: April 2026
FFL Transfer & Firearms Laws for CMMG 33A380C-AB Dissent MK3 8.6 Blackout 20rd 12.50″ Black Nitride 7075-T6 Aluminum Receiver 11″ Proprietary Handguard CMMG Zeroed Grip
All firearms, including the CMMG 33A380C-AB Dissent MK3 8.6 Blackout 20rd 12.50″ Black Nitride 7075-T6 Aluminum Receiver 11″ Proprietary Handguard CMMG Zeroed Grip, must be shipped to a licensed Federal Firearms License (FFL) dealer. You will be required to complete a background check and any necessary paperwork before taking possession.
How It Works
- Place your order online.
- Provide your preferred FFL dealer information.
- We ship the firearm directly to your FFL.
- You complete the background check and pickup at the FFL.
Legal Compliance
We comply with all federal and state firearm laws. It is your responsibility to ensure the CMMG 33A380C-AB Dissent MK3 8.6 Blackout 20rd 12.50″ Black Nitride 7075-T6 Aluminum Receiver 11″ Proprietary Handguard CMMG Zeroed Grip is legal in your state. Some states may have restrictions on certain firearm models or features.
Helpful Resources
Need assistance? Contact our Miami store for help with FFL transfers and firearm compliance.
Frequently Asked Questions About This Product
Why buy CMMG 33A380C-AB Dissent MK3 8.6 Blackout 20rd 12.50″ Black Nitride 7075-T6 Aluminum Receiver 11″ Proprietary Handguard CMMG Zeroed Grip from Miami Shooters Supply?
We’re a trusted firearms dealer offering fast shipping, competitive pricing, and 100% compliance with U.S. federal firearm laws. All orders ship from our licensed facility with full tracking and expert customer service.
Where can I buy CMMG 33A380C-AB Dissent MK3 8.6 Blackout 20rd 12.50″ Black Nitride 7075-T6 Aluminum Receiver 11″ Proprietary Handguard CMMG Zeroed Grip?
You can purchase this item directly on our website and have it shipped to your local FFL dealer. You can also visit us in-store in Miami, Florida.
Is CMMG 33A380C-AB Dissent MK3 8.6 Blackout 20rd 12.50″ Black Nitride 7075-T6 Aluminum Receiver 11″ Proprietary Handguard CMMG Zeroed Grip available now?
Availability is shown live on this page. If the “Add to Cart” button is visible, this item is currently in stock and ready to ship.
What category does this product belong to?
This product is listed under: AR Pistols.
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Is this product legal in my state?
It is your responsibility to ensure this item is legal in your state or locality. We ship only to valid FFL dealers in compliance with U.S. laws. Always check your local regulations.
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FFL Transfer & Firearms Laws
All firearms, including the CMMG 33A380C-AB Dissent MK3 8.6 Blackout 20rd 12.50″ Black Nitride 7075-T6 Aluminum Receiver 11″ Proprietary Handguard CMMG Zeroed Grip, must be shipped to a licensed Federal Firearms License (FFL) dealer. A background check and any required local paperwork must be completed before you can take possession.
How It Works
- Place your order online.
- Send us your preferred local FFL dealer info.
- We ship the firearm to your FFL after verification.
- Complete background check and pick up from your dealer.
Legal Compliance
We comply with all U.S. firearm laws. It is your responsibility to ensure the CMMG 33A380C-AB Dissent MK3 8.6 Blackout 20rd 12.50″ Black Nitride 7075-T6 Aluminum Receiver 11″ Proprietary Handguard CMMG Zeroed Grip is legal in your state. Some states (e.g. CA, NY, NJ) have restrictions on magazine size or certain features.
Helpful Links
Need help? Contact our team — we’ll guide you through selecting a compliant firearm and the FFL transfer process.
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