I recently wrote a review of the CMMG Banshee, and I was very impressed with nearly everything about it. So I decided I wanted to try another gun from CMMG, and reached out to see if I could get my hands on one of their Dissent pistols. After some waiting I was happy to see the little CMMG box show up at my desk.

The Dissent
The Dissent is not your typical AR-15 type pistol, it utilizes CMMG’s buffer-less compact action. This means that it doesn’t need the bulky buffer tube that comes standard with most AR-15 patterned rifles. The compact action instead utilizes a dual spring pack that runs right above the bolt carrier itself, it carries in between the spring set a rubberized stop if the carrier should reach a full stroke to the rear. The two uneven spring guide-rods are keyed into a steel boss at the back of the upper receiver, but remain independent of the receiver itself. The front of the two springs are captured in a T-shaped housing that appears to be part of the bolt carrier itself.
From there the Dissent is almost the same as a standard AR, using what appears to be a standard bolt, cam pin and firing pin parts. I say almost because there are a few other differences.

Because the spring assembly sits where the charging handle would normally be, they had to move the charging system to the front of the action instead. There is a steel charging block that rides in a groove inside the handguard at twelve o’clock, the charging handle itself slides in from the side of the handguard and rides in its own grove from there. A claw is attached to the front of the charging handle to keep it from reciprocating, and as far as I can tell it is reversible to either side of the handguard but requiring you to purchase a right-sided charging handle. The charging block only pushes on the bolt carrier when pulled to the rear, but remains captured during the cycling of the bolt carrier.
The Dissent is available in 5.56, 300blk, and 5.7.

Initial impressions
As I pulled the gun from its packaging I have to say I was impressed. The Dissent came to me in a handsome charcoal green Cerakote sporting CMMG’s muzzle device and a pair of Pmags. The buffer tube hole at the back of the lower receiver had been covered by a vertical pic rail, to allow for a brace or stock installation should you choose to be infringed upon by the NFA.
The Dissent comes standard with a Trigger Tech AR-D two stage trigger which was crisp as the air on a December morning. I found myself triggering the gun over and over in anticipation of shooting it. Fairly standard controls, with a 45 degree safety and ambidextrous mag release buttons. I found the left side mag button to be a little close to the bolt release for my taste, it seemed like it might be too easy to drop the mag when your trying to drop the bolt. But we’ll see about that at the range.

I was excited to get the Dissent out into the open where I could shoot it. It was a beautiful winter afternoon, with temps in the teens. Not exactly a perfect day, but close to it. I did nothing to the gun as far as lubrication or anything like that. We just started loading P-mags and went to it.

My very first impression was, how am I supposed to shoot this thing? AR pistols are small enough that you can shoot them like a pistol, but it feels awkward and silly to me. So we tried several different ways of holding the gun and ended up with one hand on the pistol grip and the other on the magwell or handguard area.

I had mounted my US Optics TSR 1X red dot for a sight, and lucky for me, it was near perfectly zeroed at about fifty yards. We went through several magazines of American Eagle 55 grain ball ammunition, and the DIssent kept plugging away.

Most things inside 50 yards seemed fairly easy to hit, I’m sure it would be useful at further distances, but something was going to need to change first. It was difficult for a guy who mainly shoots precision rifles to properly steady the rifle without having a rear point to anchor to the shoulder.

This is certainly not the fault of the Dissent, just something I’m not used to. Before testing any accuracy with the gun, I wanted to get a proper brace or buttstock to shoot it right.

Even so, we had a great time shooting the little charcoal green pistol. At no time during testing did the firearm show any malfunctions or issues, and it was fun to shoot.

I decided to throw a suppressor on the gun as well, to see how it did as a host. I had my Yankee Hill Machine Turbo 556 suppressor handy and spun it on after removing the CMMG muzzle device.

The Dissent doesn’t have an adjustable gas block, but it didn’t seem to matter. It kept banging along, suppressed, which was obviously more pleasant for the user. Slightly more noticeable gas was felt for the shooter, but not something I would be too concerned about.

RELIABILITY

The Dissent showed no malfunctions during my testing. It was using P-mags, metal GI mags, and an assortment of ammunition. Besides the American Eagle 55 grain ammo, we also shot some Frontier 55 grain hollow point ammunition and a handful of others that had collected in the bottom of my range bucket.

The seven-twist barrel of the dissent also had no trouble shooting some 75-grain loads that worked without problems.

ACCURACY

The short stiff barrel of the Dissent worked great for keeping shots consistent. Once a brace was added, I found it was easy to keep groups under 2 MOA at one hundred yards.

As the Dissent is more configured as a personal defense weapon (PDW) or something of a short sporting arm, I found this level of accuracy to be perfectly acceptable.

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