CMMG DISSENT Mk4 — 22 ARC, 16.10", Midnight Bronze Cerakote, 10+1
Brand: CMMG • Series: DISSENT Mk4 (bufferless AR-15 platform) • Caliber: 22 ARC • Capacity: 10+1 • Barrel: 16.10", threaded • Finish: Midnight Bronze Cerakote® • Upper/Lower: Aluminum receivers with full-length Picatinny top rail • Handguard: M-LOK® free-float • Stock: CMMG DISSENT Side-Folding stock (bufferless compatible) • Trigger: ZEROED™ Drop-In Single-Stage • Model/SKU: 28A490FMB • UPC: 810148627218
Meet the compact precision rifle that punches way above its weight. The CMMG DISSENT Mk4 in 22 ARC blends a bufferless operating system with a true side-folding stock, a 16.10" threaded barrel, and CMMG’s crisp ZEROED™ drop-in single-stage trigger—all wrapped in a rugged Midnight Bronze Cerakote finish. Built around the high-BC 22 ARC cartridge, it delivers flat trajectories, impressive wind performance, and soft recoil from a portable AR-15 footprint that stows neatly in vehicles and deploys fast when it’s time to shoot.
Why the DISSENT Mk4 22 ARC Stands Out
Bufferless Design = Real Folding Stock: No receiver extension needed, so you get a true side-folding stock for compact transport and tight spaces—without compromising reliability.
Long-Range .224 Ballistics: Optimized for heavy 75–88+ grain bullets, 22 ARC offers excellent downrange efficiency and less wind drift than legacy .223 loads.
16.10" Velocity Sweet Spot: A practical length that preserves handling while generating the speed you need for precise dope at distance.
Match-Grade Trigger: The ZEROED™ drop-in single-stage provides a clean break and short reset for faster, more consistent hits.
Free-Float Stability: A rigid M-LOK handguard keeps support pressure off the barrel for repeatable POI from bags, bipods, and barricades.
Key Features & Specs
Caliber: 22 ARC (.224 bore; built for high-BC, long-ogive bullets)
Capacity: 10+1 (verify local laws)
Barrel: 16.10", precision-profile, threaded for brakes/compensators/suppressor mounts*
Receivers: Aluminum upper/lower with continuous Picatinny rail for optics and accessories
Handguard: Free-float M-LOK® with ample slots for bipods, QD cups, ARCA plates, and night-optic accessories
Stock: CMMG DISSENT Side-Folding (bufferless system enables true folding)
Trigger: CMMG ZEROED™ drop-in single-stage
Controls: AR-style; configuration may include ambi features (varies by shipment)
Finish: Midnight Bronze Cerakote® (low-glare, hard-use)
Model/SKU: 28A490FMB • UPC: 810148627218
*Confirm thread pitch and suppressor/muzzle device ratings prior to installation.
Performance Advantages You’ll Notice
Stay on Target: Mild 22 ARC recoil and a crisp single-stage trigger help you spot impacts through the optic and run faster follow-ups.
Packable Precision: Fold the stock to reduce overall length for travel, storage, and moving through tight gates or timber.
Tripod & Barricade Ready: Long, stiff handguard and top rail make it easy to build stable positions in the field or at a match.
Suppressor-Friendly: Threaded muzzle accommodates modern .22-cal cans (where legal) for reduced blast and clearer shot-calling.
Ideal Use Cases
Predator & Varmint: Stretch coyotes and prairie dogs with high-BC bullets and minimal shooter fatigue.
Practical Precision Training: Drill wind calls and positions with a gas gun that’s easier to carry than a big-frame AR.
Ranch & Property: A durable, accurate, compact rifle that’s ready the moment a shot window opens.
Travel/Truck Rifle: Bufferless folding design simplifies discreet transport and quick deployment.
Setup Tips for Best Results
Magazines: 22 ARC typically feeds best from 6.5 Grendel-pattern AR-15 magazines due to case geometry and long COAL.
Optics: Choose a dependable FFP 3–15x or 4–16x with a wind tree and trustworthy tracking; LPVOs also work for lighter setups.
Support Gear: Add a cant-adjustable bipod and a small rear bag; consider an ARCA plate for tripod stages.
Ammo: Test several 75–88+ gr factory loads; log muzzle velocity (MV) and SD for reliable dope.
Gas/Impulse Tuning: If you change muzzle devices or run suppressed, tune for smooth ejection and minimal sight movement.
Specifications (At a Glance)
Platform: CMMG DISSENT Mk4 (AR-15 pattern, bufferless)
Caliber: 22 ARC
Capacity: 10+1
Barrel Length: 16.10", threaded
Handguard: Free-float M-LOK
Receivers: Aluminum, Picatinny top rail
Stock: CMMG DISSENT Side-Folding
Trigger: ZEROED™ Drop-In Single-Stage
Finish: Midnight Bronze Cerakote®
Model/SKU: 28A490FMB
UPC: 810148627218
Note: Exact twist rate, thread pitch, furniture details, and included accessories can vary by production run. Review your rifle’s package contents for specifics.
Care & Maintenance
Break-In & Cleaning: Follow CMMG’s recommendations; keep the chamber, gas path, and crown clean for best precision.
Fastener Discipline: Torque M-LOK accessories and optic mounts to spec; use blue threadlocker where appropriate.
Data Tracking: Maintain a log of MV, density altitude, and wind for repeatable hits across seasons.
SEO Highlights (Copy & Paste)
CMMG DISSENT Mk4 22 ARC 16.10" Midnight Bronze Cerakote
10+1 bufferless AR-15 with side-folding stock and Picatinny rail
M-LOK free-float handguard • ZEROED™ drop-in single-stage trigger
Threaded barrel for suppressor/brake; optimized for heavy .224 bullets
Model 28A490FMB • UPC 810148627218
Frequently Asked Questions
Q: What magazines should I use with 22 ARC?
A: 6.5 Grendel-pattern AR-15 magazines typically provide the most reliable feeding with 22 ARC’s case shape and longer projectiles.
Q: Is a 16.10" barrel enough for long-range work?
A: Yes—paired with high-BC 22 ARC bullets, 16.10" balances velocity and portability, enabling impressive practical long-range capability.
Q: Can I run a suppressor?
A: The barrel is threaded. Confirm thread pitch and ensure your suppressor is rated for high-velocity .224 centerfire cartridges.
Q: What’s special about the ZEROED™ trigger?
A: It’s a drop-in single-stage with a crisp break and short reset, helping you press cleaner shots and run quicker follow-ups.
Q: What’s the benefit of the bufferless system?
A: Eliminating the receiver extension enables a true folding stock, reducing overall length for storage and transport while maintaining reliability.
Compact, Accurate, and Built to Go Far
The CMMG DISSENT Mk4 22 ARC 16.10" (28A490FMB, UPC 810148627218) merges long-range performance, soft recoil, and true side-folding portability—complete with a ZEROED™ single-stage trigger, M-LOK handguard, and Midnight Bronze Cerakote durability. Mount quality glass, feed it high-BC ammo, and watch your hit percentage climb.
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