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The buffer tube has always been the thing holding AR pistols back from being truly compact. CMMG solved it with the Dissent MK4. Their patented Compact Action tucks the entire recoil system inside the receiver, riding on dual springs and guide rods above the bolt carrier, so the back of the gun ends in a clean 1913 Picatinny end cap instead of a tube. The result is a 5.7x28mm pistol that measures just 14.7 inches overall and weighs 4.6 pounds empty, and that rear rail is ready for whatever attachment fits how you plan to run it.
The Compact Action works alongside CMMG's Radial Delayed Blowback system, the same setup that made the Banshee line so pleasant to shoot. Paired with the already mild 5.7x28mm cartridge and the Zeroed linear compensator up front, recoil is barely a conversation. The 6.5 inch 4140CM barrel gets a salt bath nitride treatment for wear resistance, spins a 1:9 twist, and the muzzle is threaded 1/2×28 if you want to swap devices or add a can. Feeding all of it is a 32 round magazine that runs through the standard MK4 lower, and you get two of them in the box.
Instead of a rear charging handle, the Dissent uses a non-reciprocating side charger mounted forward on the handguard, so you can run the action without breaking your grip or coming off target. It ships on the left side and can be swapped to the right. CMMG's Zeroed furniture covers the grip, extended trigger guard, and 60/90 degree ambidextrous safety, while the trigger is a TriggerTech AR-D two stage developed specifically for the Dissent, breaking crisp at around 4 pounds. That is a serious upgrade over the gritty mil-spec triggers most factory guns ship with.
Between the 7075-T6 aluminum receivers, the Midnight Bronze Cerakote finish, and CMMG's lifetime quality guarantee, this is a premium build from a company that has spent over twenty years pushing the AR platform in new directions. Add an optic to the full length top rail and you have one of the flattest shooting, most packable large format pistols on the market.
CMMG's patented Compact Action moves the recoil system inside the receiver, using dual springs and guide rods that ride above a shortened bolt carrier. That eliminates the buffer tube completely, which is why the gun comes in at just 14.7 inches overall. The rear of the receiver is capped with a 1913 Picatinny rail instead.
It feeds from CMMG's 5.7 AR conversion magazines, which fit the standard MK4/AR-15 pattern lower and hold 32 rounds. Two of them ship with the pistol. Since the lower is a standard MK4 pattern, it also pairs with other caliber Dissent uppers and their matching mags down the road.
No, it ships without sights. The full length top Picatinny rail makes mounting a red dot quick and easy, and given the size and role of this pistol, a compact dot is the setup most people run on it.
Yes. The forward mounted, non-reciprocating side charger ships on the left side and is interchangeable to the right, though you will need the right side charging handle from CMMG to make the swap. Either way, it lets you work the action without breaking your firing grip.
| UPC | 810097507937 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 54AA847-MB |
| Action | |
| Barrel Length | 6.5" |
| Caliber/Gauge | 5.7 x 28 mm |
| Capacity | 32 |
| Color | Midnight Bronze |
| Length | 40.4500 |
| Model | |
| Number of Magazines | 2 |
| Product Type | AR |
| Safety | Manual Safety |
| Sights Type | NONE |
| State Restriction (IL) | NO SALE TO ILLINOIS PICA |
| State Restriction (OR) | NO SALE TO OREGON |
| State Restriction (RI) | NO DIRECT SHIP TO RHODE ISLAND |
| State Restriction (WA) | NO DIRECT SHIP TO WASHINGTON |
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