# CMMG Dissent Mk4 .300 AAC Blackout 6.5in Tungsten **Brand:** CMMG **Category:** Handguns **Caliber:** .300 AAC Blackout ## Specifications - **Caliber:** .300 AAC Blackout - **Barrel Length:** 6.5" - **Finish:** Tungsten Cerakote - **UPC:** 840442500979 - **SKU:** UCEnNb5FL ## Description The CMMG Dissent Mk4 is a compact AR-style pistol chambered in .300 AAC Blackout, built around a 6.5-inch barrel and finished in tungsten Cerakote. It uses CMMG's Compact Action direct-impingement system, which places the recoil mechanism inside the upper receiver instead of a traditional buffer tube, keeping the overall package short. The pistol ships optics-ready and retains AR-15 style ambidextrous controls. ### Key Specifications - **Brand:** CMMG - **Model:** Dissent Mk4 - **Caliber:** .300 AAC Blackout - **Action:** Semi Auto - **Capacity:** 30+1 - **Barrel Length:** 6.5 inches - **Finish:** Tungsten Cerakote - **Material:** 7075-T6 Aluminum ### Detailed Features - Bufferless Compact Action design with a forward side charging handle removes the need for a standard buffer tube - Adjustable gas block paired with a CMMG ZEROED linear compensator - DISSENT 7075-T6 aluminum upper mated to a forged Mk4 7075-T6 lower - Free-float M-LOK handguard with a rear 1913 Picatinny rail section for accessories - AR-15 style ambidextrous controls and an optics-ready upper for mounting a red dot This configuration is aimed at shooters who want a portable .300 Blackout platform without the length of a full carbine, useful as a truck gun or a compact home-defense setup where AR-15 manual of arms is preferred. ## Frequently Asked Questions **Q: What caliber is the CMMG Dissent Mk4?** A: It is chambered in .300 AAC Blackout. **Q: Who makes the Dissent Mk4?** A: It is made by CMMG. **Q: What type of firearm is the CMMG Dissent Mk4?** A: It is a compact AR-style pistol using CMMG's Compact Action direct-impingement system, which places the recoil mechanism inside the upper receiver instead of a traditional buffer tube. **Q: What is the barrel length of the Dissent Mk4?** A: It has a 6.5-inch barrel. **Q: How many rounds does the Dissent Mk4 hold?** A: It has a 30+1 capacity. **Q: Is the CMMG Dissent Mk4 optic-ready?** A: Yes, the upper is optics-ready for mounting a red dot. **Q: Where can I buy the CMMG Dissent Mk4?** A: Compare current vendor offers on this page. ## What Reviewers Say *Quoted verbatim from YouTube reviews. Each link opens the video at the moment quoted.* > This is one of the coolest guns I've ever shot. > > — [Misha’s Guns](https://www.youtube.com/watch?v=AAgWJg2S3pc&t=220s) > Final thoughts on this gun is that it passed with flying colors. > > — [Misha’s Guns](https://www.youtube.com/watch?v=AAgWJg2S3pc&t=261s) > I can confidently say this might be my new favorite gun. > > — [Misha’s Guns](https://www.youtube.com/watch?v=AAgWJg2S3pc&t=266s) > The rifle performed flawlessly no hiccups granted we maybe shot like 90 rounds. > > — [Misha’s Guns](https://www.youtube.com/watch?v=AAgWJg2S3pc&t=279s) ## What Customers Say *AI-generated insights from customer reviews* Owners of the Dissent line tend to like how CMMG's Compact Action shrinks the package without giving up AR-15 style controls. The bufferless design draws mixed reactions: some shooters appreciate the shorter overall length and reduced weight up front, while others find the forward side charger takes a range session or two to get used to compared to a standard AR charging handle. Reliability chatter around the platform is generally positive once shooters run it with ammunition matched to the gas system. As a compact .300 Blackout pistol, the Dissent Mk4 gets picked for close-quarters or truck-gun duty more than for extended range sessions. The optics-ready upper and M-LOK handguard make it easy to set up with a red dot and a light, and the ambidextrous controls are appreciated by left-handed shooters. Some owners note that a pistol this short benefits from a brace or arm strap for stable one-handed control, since the compact profile changes the way it points compared to a full-length carbine. Value-wise, CMMG pistols sit at a premium over basic mil-spec AR builds because of the proprietary Compact Action parts, and owners generally accept that tradeoff for the compact footprint. Aftermarket support for standard AR-15 furniture and optics is broad, though parts specific to the Compact Action system come from CMMG itself. .300 Blackout ammunition is widely available, which keeps the platform practical to feed. ## Pricing **1 offers available** | Vendor | Price | |--------|-------| | Classicfirearms Com | $1873.36 | ## Similar Products - [CMMG Dissent Mk4 .300 AAC Blackout 6.5in Midnight Bronze](https://gunsnation.com/p/cmmg-dissent-mk4-300-aac-blackout-6-5in-midnight-bronze/UCEnNb5Eq) - [CMMG Dissent MK4 .300 AAC Blackout 6.5in Black](https://gunsnation.com/p/cmmg-dissent-mk4-300-aac-blackout-6-5in-black/UCEnNb5FS) - [CMMG DISSENT Mk4 .300 Blackout 6.5in Black](https://gunsnation.com/p/cmmg-dissent-mk4-300-blackout-6-5in-black/UCEnNb5EL) - [CMMG Dissent MK4 Tactical Pistol .300 AAC Blackout - Tungsten Finish](https://gunsnation.com/p/cmmg-dissent-mk4-tactical-pistol-300-aac-blackout-tungsten-finish/UCEGFyaOL) - [CMMG Banshee Mk4 .300 AAC Blackout 8in Tungsten](https://gunsnation.com/p/cmmg-banshee-mk4-300-aac-blackout-8in-tungsten/UCEGJR3rl) - [CMMG Dissent MK4: Compact 300 AAC Blackout Semi-Auto Pistol](https://gunsnation.com/p/cmmg-dissent-mk4-compact-300-aac-blackout-semi-auto-pistol/UCEGFyang) --- *Data from [GunsNation](https://gunsnation.com)*