CMMG DISSENT Mk4 — .300 Blackout AR Pistol | 10.5" Barrel | Tungsten Cerakote (TNG) | Model 30AC278TNG | UPC 810097509702
Compact, controllable, and tuned for modern .300 Blackout loads, the CMMG DISSENT Mk4 300BLK (10.5") delivers serious performance in a portable AR-pattern pistol. The short, fast-handling 10.5-inch barrel makes the most of .300 BLK’s short-barrel efficiency—ideal for both subsonic and supersonic ammunition—while the rugged Tungsten Cerakote (TNG) finish shrugs off weather and hard use. Whether you’re configuring a low-signature range setup, a home-defense tool, or a compact truck companion, the DISSENT Mk4 provides the ergonomic familiarity and accessory flexibility that shooters trust.
Why Choose the DISSENT Mk4 300BLK (10.5", TNG)
Optimized for .300 Blackout: Excellent reliability and velocity retention in short barrels; run subsonic for suppressed work or supersonic for enhanced terminal performance (where legal).
10.5" barrel sweet spot: Balances muzzle control, compact overall length, and effective energy for practical distances.
Tungsten Cerakote finish (TNG): Durable, corrosion-resistant coating with a modern, low-glare appearance that stands up to daily carry and training.
AR-pattern familiarity: Intuitive controls, proven ergonomics, and broad parts compatibility streamline setup and maintenance.
Accessory-ready: A free-float M-LOK® handguard (length may vary by production) and full-length top rail make it easy to mount optics, white lights, irons, and sling hardware.
Performance You’ll Notice
Soft, trackable recoil impulse: .300 BLK’s pressure curve in a 10.5" platform supports fast follow-ups and easier dot tracking.
Suppressor-friendly DNA: Standard .300 BLK 5/8x24 muzzle threading (typical) simplifies adding comps, brakes, or suppressors; confirm device compatibility.
Consistent accuracy: Free-floated barrel and rigid handguard help maintain POI with accessories and barricade pressure.
Duty-grade reliability: Quality components and assembly deliver clean feeding/ejection across a broad range of .300 BLK loads.
Ideal Use Cases
Home & property defense: Compact handling plus .300 BLK’s excellent terminal options in short barrels.
Suppressed shooting: Pair with heavy subsonics for low-signature training (observe NFA/local laws).
Truck/UTV companion: Short OAL, rugged finish, and easy staging for quick access.
Carbine training substitute: Runs like a rifle with less concussion than many 5.56 pistols.
Pro Setup Tips
Optic choice: A robust micro red dot (36-yard or 50/200 zero) excels on .300 BLK; add a flip-to-side magnifier for flexibility.
White light: Mount a compact M-LOK light at 10:30 or 1:30 with a remote switch for positive ID while keeping a full firing grip.
Sling: Two-point QD sling for stability and hands-free transitions.
Ammo pairing: Test both supersonic and subsonic loads; verify reliability suppressed and unsuppressed and record dope for each.
Muzzle device: Use quality devices and verify thread pitch (5/8x24) and concentricity before live fire.
Key Features at a Glance
Platform: CMMG DISSENT Mk4 AR-pattern pistol
Caliber: .300 AAC Blackout
Barrel: 10.5", free-float, threaded muzzle (5/8x24 typical for .300 BLK)
Handguard: M-LOK® compatible, free-float
Finish: Tungsten Cerakote (TNG), low-glare & corrosion-resistant
Controls: AR-style; ambi elements vary by configuration
Capacity: Detachable box magazine (30-rd standard where legal)
Model / SKU: 30AC278TNG
UPC: 810097509702
Specifications
| Attribute | Detail |
|---|
| Type | Semi-automatic AR pistol |
| Caliber | .300 AAC Blackout |
| Barrel Length | 10.5 inches |
| Muzzle Thread | 5/8x24 (typical for 300 BLK; verify on receipt) |
| Handguard | Free-float, M-LOK compatible |
| Finish | Tungsten Cerakote (TNG) |
| Magazine Type | STANAG-pattern 300 BLK/5.56 mags (capacity varies by state) |
| Top Rail | Full length, optic-ready |
| Model / SKU | 30AC278TNG |
| UPC | 810097509702 |
Compliance Note: Magazine capacity and pistol/suppressor features are regulated in many jurisdictions. Verify local and state laws before purchase, transfer, or modification.
Care & Maintenance
Keep the BCG and contact points lightly lubricated, especially for subsonic/suppressed use.
Inspect muzzle threads and devices periodically; re-torque after initial range sessions.
Re-check fasteners on optics, light mounts, and sling hardware after the first 100–200 rounds.
SEO Highlights (for Merchandising & Search)
CMMG DISSENT Mk4 300BLK pistol, 10.5" barrel, Tungsten Cerakote TNG, AR-pattern .300 Blackout pistol, M-LOK handguard, threaded 5/8x24 muzzle, optics-ready top rail, compact 300 BLK AR pistol, 30AC278TNG, UPC 810097509702.
**Compact where it counts, confident when it matters—the CMMG DISSENT Mk4 300BLK (10.5", Tungsten) is a versatile, suppressor-friendly AR pistol built for defense, training, and everyday range work.
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