Description
Key Specifications
The caliber is 5.7 x 28 mm.
The barrel length is 6.50.
The handguard is a 4.60 M-LOK design.
The finish is Armor Black.
The charging handle is left-side, non-reciprocating.
The action employs Radial Delayed Blowback with a fixed ejector.
Includes a zeroed linear compensator as specified in the product name.
Features a 1913 Picatinny rail end plate for use in place of a lower receiver buffer tube.
The twist rate is 1:9.
The CMMG DISSENT MK4 upper group is a compact AR-platform assembly that integrates CMMGs patent-pending Compact Action to house the action and recoil components within the upper receiver, reducing overall bulk. It uses Radial Delayed Blowback technology with a fixed ejector and a forward non-reciprocating left-side charging handle for practical bolt operation. The package includes a 4.60 M-LOK handguard, a zeroed linear compensator, and a 1913 Picatinny rail end plate for mounting options on AR-style builds.
Designed for shooters seeking a compact, straightforward upper for AR-platform projects, the DISSENT MK4 balances short overall length with a user-friendly charging solution and modular handguard compatibility, making it well suited for compact defensive or range-focused configurations.
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