The CMMG Dissent Mk4 in .300 Blackout is a bufferless AR pistol purpose-built for concealable firepower, vehicle carry, and tight-quarters work. At a 6.5" barrel and a total length well under 20 inches, it's smaller than a Mk18 while firing the round .300 BLK was designed to deliver — full-power terminal performance out of short barrels, with subsonic loads that run whisper-quiet through a suppressor.
The defining feature is CMMG's Compact Action — a direct-impingement operating system that eliminates the buffer tube entirely. No buffer, no buffer spring, no receiver extension sticking off the back. That shortens the overall package dramatically and opens up folding brace and stock configurations that aren't possible on a conventional AR platform.
Other features include an adjustable gas block to tune function with supersonic and subsonic loads, a forward non-reciprocating charging handle, a full-length M-LOK handguard, and a Picatinny rear rail that accepts any 1913-compatible brace or stock (including folding adapters). The Armor Black Cerakote is a durable, low-reflectance finish matched across the upper, lower, and handguard.
If you want an SBR-capable .300 BLK platform in a genuinely compact package, the Dissent Mk4 delivers. Order yours today.
THIS IS A SERIALIZED FIREARM. It must ship to a Federal Firearms License holder. No civilian exceptions.
Buying and shipping through Charlie’s is easy, but there is some information you need to know. Only a federally licensed firearms dealer may receive a firearm or federally regulated serialized item (like a receiver or suppressor). We cannot ship these items directly to you. Please follow these steps to process your transaction:
1) Check your state laws to make sure the federally regulated item you want to purchase is legal in your state. Your FFL dealer should be able to give you all of the necessary information regarding your state specific laws. But, if we ship to your FFL, and there is a legal issue, we cannot accept a return. So please make sure that you know and follow your local and state laws.
2) A quick google search will show you what Federal Firearms Licensed (FFL) dealers are in your area. When you are ready to purchase, contact the FFL dealer you would like to use and get their shipping address. During the check-out, put YOUR address in the “billing” section and the FFL DEALER’S address in the “shipping” section. If you don’t know your FFLs address, that’s okay. You can send the information later.
3) After check out, make sure to contact your FFL dealer to ensure they will receive your shipment for you (most do this for a small fee, but you should always double check).
4) Have your dealer send us a copy of their FFL to FFL@CharliesCustomClones.com. Charlie’s does not reach to your FFL (MAKE THEM EARN THEIR FEE!!!)
5) Be patient! In order to ensure we remain compliant with all federal laws, our compliance department is kept separate from our sales and operations team. Please allow a few days for our compliance officer to verify all of your dealer’s documents and ensure all federal laws are being observed. You should hear from our compliance department within 3-4 business days. If not, feel free to reach out for a status update.
That’s it! We try to make this process as simple as possible for our customers, but if you are unfamiliar the process or have any other questions, please visit our How to Buy a Firearm page for more details.
California and New York residents please, click here. The process may be different due to state specific laws.
NOTE: The free shipping option does not apply to full rifles, unless purchased with a riflescope. If you choose free shipping at check-out, we will bill you for shipping later.
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