| Platform | Mk4 |
| Caliber | .300 BLK |
| Operating System | Compact Action-Direct Impingement |
| Barrel Length | 16.1 |
| Barrel Twist | 1:7 |
| Barrel Contour | MT |
| Barrel Material | 4140CM, SBN |
| Barrel Twist | 1:7 |
| Muzzle Device | CMMG ZEROED Muzzle Brake |
| Muzzle Thread | 5/8 x 24 |
| Gas Port Location | Carbine |
| Gas Block | Adjustable 0.750" |
| Upper Receiver | DISSENT 7075 T6 Aluminum |
| Lower Receiver | Mk4 Forged 7075 T6 Aluminum |
| Hand Guard | CMMG 15" Proprietary |
| Finish | Cerakote |
| Charging Handle | Dissent Side Charger - Reversible |
| Pistol Grip | CMMG ZEROED Pistol Grip |
| Buffer Type | N/A |
| Receiver Extension | DISSENT Folding Stock Adapter |
| Stock / Brace | DISSENT Side Folding Stock |
| Trigger Type | ZEROED Drop-In |
| Trigger Guard | CMMG ZEROED Trigger Guard |
| Safety Selector | CMMG ZEROED 60/90 Degree |
| Magazine | Magpul 300BLK 30rd PMAG (2) |
| Weight | 6.4 lbs |
| Length | 33.3" - 35.5" (25.9" Folded) |
Due to high demand and supply chain issues affecting many industries, some of our parts and accessories may be on backorder and have an extended lead time. Items currently on backorder can still be purchased and can typically be shipped within 25 business days.
Rifle, DISSENT, Mk4, 300BLK, 16.1"
What do you use 300BLK for? With subsonic and supersonic loadings available for self-defense, hunting, and target shooting, there’s no wrong answer. 300BLK has solidified itself as one of the most user-tailored cartridges out there today. With a 16.1” barrel this DISSENT® feels meant to be in and leaves no performance behind.
Available in a variety of custom Cerakote finish options; the rear of every DISSENT rifle features the DISSENT side folding stock with adjustable length of pull and adjustable cheek riser. A forward non-reciprocating charging handle allows for quick and easy manipulation without coming off target and the M-LOK handguard with top picatinny rail provides ample mounting space for whatever accessories you please.
Adjustable Gas Block
300 BLK is an incredibly adaptable cartridge with different loadings for specific uses, like suppressed. With the adjustable gas block on each 300 BLK DISSENT you can fine tune the gas system to best suit the supersonic or subsonic ammo loadings you like best.
Lifetime Quality Guarantee
We aim to please, that’s why every CMMG product is backed by our Lifetime Quality Guarantee against material and workmanship defects. Learn More.
~Firearms shipping to states with magazine capacity restrictions will only ship with 10rd magazines in place of standard capacity magazines. CMMG does not address any other state compliancy requirements for further restricted states.