CMMG Dissent Mk4 Features
The Dissent Mk4 is built on the Mk4 platform and operates on a compact action-direct impingement system. It features a 14.5″ 4140CM steel barrel with a 1:7 twist rate and a CMMG ZEROED SVD Brake that is pinned and welded. The upper and lower receivers are constructed from 7075 T6 aluminum, providing a strong yet lightweight foundation. The rifle includes a 13.5″ proprietary handguard, a Dissent side-folding stock, and a reversible side charger for versatile handling. The CMMG ZEROED Drop-In trigger and adjustable 0.750″ gas block ensure reliable performance. The rifle comes with two 30-round Magpul PMAGs.
CMMG Dissent Mk4 Specifications
- Platform: Mk4
- Caliber: .300 BLK
- Operating System: Compact Action-Direct Impingement
- Barrel Twist: 1:7
- Barrel Contour: MT
- Barrel Material: 4140CM, SBN
- Muzzle Device: CMMG ZEROED SVD Brake Pinned & Welded
- Muzzle Thread: 5/8″x24
- Gas Port Location: Carbine
- Gas Block: Adjustable 0.750″
- Upper Receiver: DISSENT 7075 T6 Aluminum
- Lower Receiver: Mk4 Forged 7075 T6 Aluminum
- Hand Guard: CMMG 13.5″ Proprietary
- Finish: Cerakote
- Charging Handle: Dissent Side Charger – Reversible
- Pistol Grip: CMMG ZEROED Pistol Grip
- Buffer Type: N/A
- Receiver Extension: DISSENT Folding Stock Adapter
- Stock / Brace: DISSENT Side Folding Stock
- Trigger Type: ZEROED Drop-In
- Trigger Guard: CMMG ZEROED Trigger Guard
- Safety Selector: CMMG ZEROED 60/90 Degree
- Magazine: Magpul 300BLK 30rd PMAG (2)
- Weight: 6.2 lbs
- Length: 31.7″ – 33.9″ (24.3″ Folded)
| Barrel Length | 14.5 |
|---|---|
| Caliber | .300 AAC Blackout |
| Capacity | 30 |
| Condition | New in Box |
| Finish Per Color | Black |
| Manufacturer | CMMG |
| Manufacturer Part Number | 30AA30F-AB |
| Model | Dissent Mk4 |
| Type | Modern Sporting Rifles |
| UPC | 810144721378 |
Frequently Asked Questions About This Product
Why buy CMMG Dissent Mk4 .300 AAC Blackout 14.5" P&W Barrel 30-Rounds 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 Dissent Mk4 .300 AAC Blackout 14.5" P&W Barrel 30-Rounds?
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 Dissent Mk4 .300 AAC Blackout 14.5" P&W Barrel 30-Rounds 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: Modern Sporting Rifles, RIFLES.
What tags or features does this product have?
Key features and tags for this product include: Modern Sporting Rifles, RIFLES.
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.
FFL Transfer & Firearms Laws for CMMG Dissent Mk4 .300 AAC Blackout 14.5" P&W Barrel 30-Rounds
All firearms, including the CMMG Dissent Mk4 .300 AAC Blackout 14.5" P&W Barrel 30-Rounds, 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 Dissent Mk4 .300 AAC Blackout 14.5" P&W Barrel 30-Rounds 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.

