CMMG Dissent Mk3 8.6 Blackout 12.5" Rifle

CMMG Dissent Mk3: 8.6 Blackout Performance

The CMMG Dissent Mk3 in 8.6 Blackout represents a significant evolution in intermediate cartridge rifle design. This platform takes the proven lessons of the 300 Blackout and scales them up to the AR10 format with heavier .338 caliber projectiles.

Ballistic Advantages

8.6 Blackout is purpose-built for short-barrel rifles. The 1:3 barrel twist rate optimizes stability and performance from the compact 12.5" barrel, delivering:

• Exceptional suppressor compatibility—matching 300 Blackout's sound reduction with larger, more powerful bullets
• Superior energy retention at distance compared to smaller calibers
• Effective performance in both supersonic and subsonic loadings

Rifle Features

• Barrel: 12.5" black nitride finish with 1/2x28 threading for suppressor mounting
• Receiver: Coyote Tan Cerakote aluminum with integrated Picatinny rail
• Handguard: M-LOK compatible for modern accessory mounting
• Brace: SB Tactical folding design for compact storage and handling
• Capacity: 20+1 rounds

Purpose and Application

This rifle excels as a suppressed, short-range precision platform. Whether for hunting, home defense, or tactical training, the Dissent Mk3 delivers reliable performance in a maneuverable package. The folding brace enhances portability without sacrificing ergonomics.