CMMG 30AC278MB Dissent MK4 300BLK 10.5" Semi-Auto Midnight Bronze
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CMMG | 30AC278-MB | MPN: 30AC278MB | UPC: 810097509672 | Midnight Bronze Cerakote | 300 AAC Blackout | Semi-Automatic | 10.5" Barrel | 18.7" OAL | Weight: 135 | Threaded 5/8x24
Direct impingement operating system that eliminates the buffer tube. 1913 Picatinny optics rail and proprietary 9.6" M-LOK handguard.
Specifications:
- Brand: CMMG
- Model: DISSENT MK4
- MPN: 30AC278MB
- UPC: 810097509672
- Category: Semi Auto Pistols
- Caliber: 300 AAC Blackout
- Action: Semi-Automatic
- Barrel Length: 10.5"
- Barrel Material: 4140 Chrome Moly Steel
- Twist Rate: 1:7
- Muzzle/Thread Pitch: 5/8 x 24
- Barrel Threaded: Yes
- Barrel Profile: (as supplied)
- Overall Length: 18.7"
- Weight: 135
- Finish: Midnight Bronze Cerakote
- Frame Material / Lower Receiver: Forged 7075-T6 Aluminum
- Upper Receiver: DISSENT 7075-T6 Aluminum
- Handguard: Proprietary CMMG 9.6" M-LOK
- Rail: 1913 Picatinny
- Gas System: Pistol Length
- Gas Block: Adjustable .750"
- Operating System: Direct Impingement
- Trigger: CMMG Zeroed Premium Trigger
- Safety: CMMG Zeroed 60/90 Ambidextrous Safety
- Charging Handle: DISSENT Left-Side Charging Handle
- Stock Material: Polymer
- Grips: Polymer
- Color: Midnight Bronze
- Finish Coating: Cerakote
- Threaded Barrel: Yes
- Hand: Right
Technical Specifications
| Caliber | 300 AAC |
|---|---|
| Capacity | 30 |
| Barrel Length | 10.50" |
| Action Type | Semi-Automatic |
| Finish | Midnight Bronze |
| Weight | 8.44 lbs |
| Overall Length | 18.70" |
| Safety | Lever |
| Grips | Black Polymer |
| Manufacturer | CMMG |
| Model | 30AC278-MB |
| SKU | R779326 |
| UPC | 810097509672 |
| Color | Bronze |
| Availability | In Stock |
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Shipping & Returns
Ships to your local FFL
This firearm ships to a licensed dealer (FFL) near you for pickup, not to your home. You'll choose your FFL during checkout — and if you don't have one in mind, we'll help you find a nearby dealer. You complete the background check and pick it up there.
Shipping Information
- Orders typically process within 1-2 business days
- Firearms ship via FedEx or UPS with signature required
- Tracking information provided for all orders
- Shipping costs calculated at checkout based on weight and destination
- Total delivery time to FFL: typically 3-5 business days
Return Policy
- Firearms must be returned unfired and in original packaging within 3 days of FFL transfer
- 15% restocking fee applies to all firearm returns
- Contact us for return authorization before shipping items back
- Original shipping costs are non-refundable
Questions?
Contact us at (329) 227-0508 or submit a question for assistance with shipping or returns.
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