Product Description
The CMMG DISSENT Mk4 complete upper receiver group (MPN 28B940CTNG) is built for a compact, modern AR-style setup in .22 Advanced Rifle Cartridge (ARC). It features a 16.1-inch barrel and an optics-ready top Picatinny rail, paired with a long M-LOK handguard for flexible accessory mounting. Finished in a Tungsten Gray Cerakote, this upper is designed to pair with compatible Mk4/mil-spec AR-15 lowers for a streamlined build.
Product Highlights
- Complete CMMG DISSENT upper receiver assembly for Mk4 / mil-spec AR-15 lower compatibility
- .22 Advanced Rifle Cartridge (ARC) with a 16.10-inch barrel and 1:7 twist rate
- 15-inch M-LOK handguard and optics-ready Picatinny top rail for accessories and optics
- Non-reciprocating side charging handle for efficient, ergonomic operation
- Tungsten Gray Cerakote finish with threaded muzzle (1/2x28) and included CMMG muzzle device
Specs
- Brand: CMMG
- Model: DISSENT
- Type: Complete upper receiver assembly
- Caliber: .22 Advanced Rifle Cartridge (ARC)
- Barrel Length: 16.10 in
- Twist Rate: 1:7
- Muzzle Thread: 1/2x28
- Handguard: 15 in M-LOK
- Charging Handle: Non-reciprocating side charging handle
- Finish/Color: Tungsten Gray (Cerakote)
- Receiver Material: Aluminum (6061-T6 per source data)
- Overall Length: 25.5 in
- Manufacturer Part Number: 28B940CTNG
- UPC: 810148627522
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