CMMG® DISSENT® MK4 — .300 Blackout Semi-Automatic Pistol | 6.5" Barrel | Midnight Bronze Cerakote | ZEROED™ Linear Compensator | 5.5" Free-Float M-LOK® Handguard | ZEROED™ Pistol Grip | 1913 Picatinny Rail End Cap | Manual Safety | 30-Round Capacity | 2 Magazines | Model: 30A0E33-MB / 30A0E33MB | UPC: 810097508071
Compact, configurable, and crafted for modern defense, the CMMG DISSENT MK4 in .300 Blackout blends soft-shooting manners with serious ballistic performance in a tight, suppressor-ready package. This premium variant sports a 6.5" barrel, a rugged Midnight Bronze Cerakote® finish, the CMMG ZEROED™ Linear Compensator to push blast forward, and a 5.5" free-float M-LOK® handguard for rock-solid accessory mounting. With 30-round capacity and two magazines included, the DISSENT MK4 is purpose-built for home defense, vehicle staging, range training, and low-signature setups.
Why Choose the DISSENT MK4 in .300 BLK
.300 Blackout Versatility: Optimized for both supersonic and subsonic loads—great for short barrels and superb when paired with a suppressor (where legal).
6.5" Precision Barrel: Balances velocity, compact handling, and suppressor clearance while keeping overall length minimal.
ZEROED™ Linear Compensator: Directs concussion forward, reducing perceived blast at the shooter and making indoor/vehicle use more comfortable.
Free-Float 5.5" M-LOK® Handguard: Lightweight, rigid platform for white lights, QD sling cups, hand stops, and lasers—without impacting barrel harmonics.
Midnight Bronze Cerakote®: A durable, corrosion-resistant finish that looks as tough as it runs.
1913 Picatinny Rear End Cap: Ready for 1913-compatible accessories* and sling solutions—configure your rear end exactly how you want it.
ZEROED™ Pistol Grip: Modern grip angle and texture for repeatable control under speed.
Optics-Ready: The flat-top upper begs for a micro red dot or rugged LPVO for faster hits and better target ID.
Range-Ready: Ships with two 30-round magazines, so you’re set from day one.
*Always comply with current federal, state, and local regulations governing pistol braces/stocks and overall configuration.
Key Features at a Glance
Platform: CMMG DISSENT MK4 semi-automatic pistol
Caliber: .300 AAC Blackout
Barrel: 6.5", threaded, with CMMG ZEROED™ Linear Compensator
Handguard: 5.5" free-float M-LOK®
Controls: Manual safety, familiar AR-style controls
Rear Interface: 1913 Picatinny rail end cap
Finish: Midnight Bronze Cerakote®
Capacity: 30 rounds (includes 2 magazines)
Model: 30A0E33-MB / 30A0E33MB
UPC: 810097508071
Built for Real-World Performance
Low-Signature Capability: Pair subsonic .300 BLK with a suppressor (verify thread pitch/compatibility) for reduced report and excellent control.
Flatter, Faster Strings: The linear comp and short gas system keep the dot steadier for quicker follow-ups—especially in confined spaces.
Accessory Footprint That Makes Sense: The 5.5" handguard leaves room for a weapon light and hand stop without adding bulk; full-length Picatinny up top simplifies optic placement.
Hard-Use Durability: Cerakote over quality alloys and steel resists corrosion, abrasion, and general hard knocks from training or duty use.
Ideal Use Cases
Home & Property Defense: Compact maneuverability with .300 BLK punch; add a white light and optic for a complete defensive tool.
Vehicle/Travel Staging (where legal): Short overall length and directed blast make it well-suited to tight quarters.
Training & Classes: Manageable recoil and ergonomic controls support long days on the line.
Suppressed Builds: .300 BLK’s subsonic loads shine through short barrels with suppressors—configure confidently (follow all laws).
Suggested Setup Tips
Optic: A durable micro red dot (lower 1/3 co-witness) is quick and daylight bright; LPVO works if you want magnification.
Light: M-LOK a compact 1,000-lumen class light at 3 or 9 o’clock for positive ID.
Sling: Two-point QD from handguard to rear 1913-mounted sling point for stability and retention.
Ammo:
Supersonic (110–125 gr): Flat trajectory and higher energy for general defense.
Subsonic (190–220 gr): Quiet, soft recoil—excellent with a can; confirm cycling and POI.
Specifications (Typical)
Caliber: .300 AAC Blackout
Barrel Length: 6.5" (threaded; verify thread pitch in manual)
Muzzle Device: CMMG ZEROED™ Linear Compensator
Handguard: 5.5" free-float M-LOK®
Controls: Manual safety; AR-style magazine release/bolt controls (per model configuration)
Finish: Midnight Bronze Cerakote®
Capacity: 30+1 (mag-dependent); includes (2) 30-rd mags
Model/UPC: 30A0E33-MB / 30A0E33MB | 810097508071
Specifications may vary slightly by production lot. Always verify thread pitch, overall length/weight, and component details with the firearm in hand and the included manual.
What’s in the Box
CMMG DISSENT MK4 .300 Blackout Pistol — Midnight Bronze
(2) 30-round magazines
Owner’s manual, lock, and factory accessories (as packaged)
Safety, Compliance & Ownership Notes
Know the Law: Magazine capacity, threaded barrels, suppressors, and brace/stock rules vary by jurisdiction—verify before purchase or modification.
Safe Handling: Muzzle discipline, finger off the trigger until on target, and quality ammo only.
Maintenance: Follow CMMG’s cleaning/lube schedule; re-torque M-LOK® accessories and optic mounts after your initial range session.
Frequently Asked Questions
Q: Is this model suppressor-ready out of the box?
A: The barrel is threaded and ships with a ZEROED™ Linear Compensator installed. Confirm thread pitch and remove/replace per the manual when mounting a suppressor.
Q: What optics pair best?
A: A rugged micro red dot with shake-awake is ideal. If you need reach, a compact LPVO works—just mind eye relief on a pistol-length platform.
Q: Are magazines proprietary?
A: This .300 BLK model ships with two 30-round magazines compatible with the platform; use high-quality mags for best reliability.
Q: Can I add a brace or stock to the rear 1913 rail?
A: The 1913 Picatinny end cap accepts compatible accessories. Always follow current laws and manufacturer torque/fit guidance.
SEO Highlights (For Shoppers)
CMMG DISSENT MK4 .300 Blackout pistol with 6.5" barrel
Midnight Bronze Cerakote, CMMG ZEROED linear compensator
5.5" free-float M-LOK handguard, 1913 Picatinny rear end cap
30-round capacity, two magazines included, manual safety
Model 30A0E33-MB / 30A0E33MB, UPC 810097508071
Compact, controllable, and configurable—the CMMG DISSENT MK4 in .300 BLK gives you modern performance in a sleek, Midnight Bronze package that’s ready to set up for defense, training, and suppressed shooting.
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