CMMG 28A490FCT Dissent MK4 | .22 ARC | 16.10″

The CMMG Dissent MK4 in .22 ARC is a bufferless compact-action AR-style carbine designed to deliver high-velocity .22 ARC performance while retaining familiar AR-15 manual-of-arms controls. It uses a non-reciprocating forward side charging handle and a Dissent side-folding stock with adjustable length of pull and cheek riser for compact transport and versatile ergonomics. The rifle is finished in Coyote Tan Cerakote with an M-LOK handguard and a top Picatinny rail for optics and accessories. For an optic under $1,000 that pairs well with this platform, consider a 1-6×24 low-power variable optic such as the Vortex Viper PST 1-6×24.

Common applications for this rifle include varmint hunting and precision target shooting where the .22 ARC cartridge provides flat trajectories and high terminal velocity in a compact AR package.

Product Specifications

• The manufacturer part number is 28A490FCT.
• The model is CMMG Dissent MK4.
• The caliber is .22 ARC.
• The barrel is a 16.10″ medium taper, threaded configuration.
• The twist rate is 1:7″.
• The magazine capacity is 10 + 1.
• The muzzle device is a CMMG Zeroed Muzzle Brake.
• The overall length and weight are 35.50″ and 6.70 lbs, respectively.
• The receiver material is Aluminum.
• The handguard is M-LOK with a top Picatinny rail.
• The stock is a Black CMMG Dissent side folding stock with adjustable length of pull and cheek riser.
• The trigger is a Zeroed Drop-In Single Stage.
• The safety is a CMMG Zeroed 60/90 Degree.
• The rifle ships with two CMMG 10rd magazines.
• The UPC is 810148627201.

Thoughtful engineering like the bufferless Compact Action and the non-reciprocating forward charger give the Dissent MK4 clean, repeatable operation and simple maintenance. Its M-LOK handguard and full-length top rail make it straightforward to mount optics and support gear, while the folding stock improves transportability for field use. For shooters who want AR familiarity combined with the ballistic performance of .22 ARC, this rifle offers a practical, well-equipped package out of the box.

Related Videos: