CMMG DISSENT Upper — 9mm Luger, 6.50" Barrel — Left-Side Charging — Armor Black — ZEROED™ Linear Comp — 4.60" M-LOK® Handguard — Picatinny End Plate — AR-Platform — Model 94B6829AB — UPC 810097509788
Build a compact, soft-shooting PCC with the CMMG DISSENT 6.50" 9mm Upper in Armor Black. Purpose-engineered for maneuverability and modern ergonomics, this assembly combines a 6.50-inch 9mm barrel, left-side charging handle, and OEM ZEROED™ Linear Comp with a lightweight 4.60" free-float M-LOK® handguard and Picatinny end plate. The result is a short, quick-handling upper that’s ideal for PDW builds, vehicle carry, and close-quarters training—ready for your AR-platform lower, optic, and mission-critical accessories.
Note: This listing describes the upper receiver assembly configuration. See Included / Not Included below and verify contents with your retailer.
Why Choose the DISSENT 6.5" 9mm Upper
Compact 9mm performance: The 6.50" barrel maximizes portability while delivering reliable function and practical velocities for defensive ammo and training loads.
Left-side charging efficiency: Keep your firing hand locked-in while running the bolt with your support hand—ideal from barricades, in vehicles, or when shooting around cover.
ZEROED™ Linear Comp: Directs blast and concussion downrange (instead of sideways) to improve shooter comfort—especially important on short barrels.
4.60" free-float M-LOK® handguard: Rigid, lightweight rail with M-LOK slots for lights, hand stops, and QD sling mounts—without front-end bulk.
Armor Black finish: Durable, low-glare coating that stands up to hard training cycles and inclement weather.
Picatinny end plate: Adds rear rail real estate for sling interfaces and accessories while keeping the package modular.
Key Specs (At a Glance)
Platform: AR-15 / CMMG DISSENT upper receiver group
Caliber: 9mm Luger (9×19)
Barrel Length: 6.50 inches
Muzzle Device: CMMG ZEROED™ Linear Comp (factory installed)
Handguard: 4.60" free-float M-LOK® aluminum
Charging: Left-side charging handle (support-hand friendly)
Rear Interface: Picatinny end plate
Finish/Color: Armor Black
Model / SKU: 94B6829AB
UPC: 810097509788
Designed for Real-World PCC Builds
The DISSENT’s compact architecture shines in CQB, home defense, and vehicle roles. The linear comp pushes pressure forward to make short-barreled 9mm shooting more pleasant indoors or alongside teammates. The free-float handguard preserves accuracy and offers just enough rail length to mount a white light, pressure pad, or hand stop without adding unnecessary weight.
Compatibility & Build Notes
Lower receivers: Pairs with AR-15 lowers configured for 9mm magazines (e.g., dedicated 9mm lowers or quality magwell adapters). Verify your mag pattern and ejector setup.
Bolt / operating system: Follow CMMG guidance for the correct 9mm BCG and charging solution compatible with DISSENT uppers. (Some packages vary—confirm contents.)
Magazines: Use reliable 9mm AR magazines (Glock-pattern or Colt-pattern depending on your lower).
Optics & sights: Flat-top receiver accepts red dots, prisms, or low-power optics; the short handguard supports offset lights/sights.
Suppressors: For suppressed 9mm use (where legal), consider tuning (buffer, springs, or gas/bolt parameters as applicable) to optimize reliability.
Ideal Use Cases
Home & personal defense: Short overall length, decisive 9mm performance, and forward-directed blast for confined spaces.
Vehicle & low-profile carry: Easy to stage and maneuver around doors, seats, and steering columns.
Training & classes: Side-charging ergonomics simplify malfunction clearance and admin handling; M-LOK® real estate supports modern light/sling setups.
Range fun & PCC competition: Fast transitions, quick follow-ups, and simple logistics with 9mm ammunition.
What’s Included / Not Included
Typically Included:
CMMG DISSENT 9mm Upper with 6.50" barrel
ZEROED™ Linear Comp (installed)
4.60" Free-float M-LOK® handguard
Left-side charging assembly (as configured by CMMG)
Picatinny end plate
Not Included (verify package):
Bolt Carrier Group (BCG) / operating components (varies by configuration)
Sights/optics, sling, lower receiver assembly, and magazines
Always confirm the exact contents of your shipment—configurations may vary by batch or retailer.
Setup & Zeroing Tips
Unload and clear your lower; separate upper/lower per AR procedures.
Pin the DISSENT upper to your AR-platform 9mm lower; install the recommended 9mm BCG/charging solution per CMMG guidance.
Mount accessories (light/hand stop) using M-LOK® hardware; apply threadlocker and torque to spec.
Function test with your intended magazines and ammo.
Zero at your preferred distance (15–25 yards is common for PCCs); record holds for defensive and training loads.
Care & Maintenance
Keep the chamber, bore, and bolt group clean; lightly lube friction points per your BCG manufacturer.
Re-check handguard and muzzle device torque after initial 100–200 rounds.
If suppressed, shorten cleaning intervals to manage increased fouling.
Safety & Compliance
Use only quality 9×19 (9mm Luger) ammunition from reputable manufacturers.
Follow all federal, state, and local laws regarding barrel length, braces/stocks, suppressors, and transportation.
Confirm headspace, magazine compatibility, and component fit before live fire.
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Compact. Controllable. Configurable. The CMMG DISSENT 6.50" 9mm Upper merges left-side charging, a ZEROED™ Linear Comp, and a free-float M-LOK® handguard to deliver a modern PCC foundation that’s fast, modular, and ready for real-world use.
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