[Big 3 East] CMR-30 Suppressed by AMTAC Suppressors

Down at Big 3 East I got a chance to check out AMTAC Suppressors. They make an over the barrel suppressor. Similar in basic concept as the OSS suppressors only the AMTAC cans have a traditional baffle system. Over the barrel suppressors allow the user to maintain their rifle length barrels without adding significant weight to the end of the muzzle. Their suppressors only extend 3.5″ past the muzzle. The majority of the weight is kept near or behind the muzzle. Allowing for better balance of a weapon system without needing to chop down a barrel. They only make suppressors for 5.56 and 7.62 calibers. They are working on a 9mm suppressor. They have different lengths that go over the barrel. They have a 6″ or 4″ can. That means the can sits back either 6″ or 4″ behind the muzzle. The length is determined by your rifle setup. So if you have enough barrel then go with the 6″ version.

Below is the display model with an acrylic sleeve so you can see how the AMTAC suppressor baffles look like.



The baffle stack is what screws onto the end of your barrel. The empty chamber behind it is for expanding gas.

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The AMTAC suppressors worked great on 5.56 ARs and really helped cut the DB down to hearing safe levels. The over barrel design really helps with the balance of the gun. With my CMR-30 I remember adding the SureFire RC2 Socom II suppressor and it added a significant amount of weight at the end of the gun. The AMTAC did not feel so heavy as the weight was closer to the CG of the gun.

For more information check them out at AMTACSUPPRESSORS.com.

Nicholas C

Co-Founder of KRISSTALK forums, an owner’s support group and all things KRISS Vector related. Nick found his passion through competitive shooting while living in NY. He participates in USPSA and 3Gun. He loves all things that shoots and flashlights. Really really bright flashlights.

Any questions please email him at nicholas.c@staff.thefirearmblog.com


  • Budogunner

    That baffle stack is…

    • thedonn007

      Yea, I am not so sure about that baffle stack. Needs some 60 degree cones.

    • JumpIf NotZero

      … The single worst design ever created. Really, the encapsulated tube with holes is known to be extremely ineffective, and they’re seemingly not ashamed to show it.

      It’s part of the reason why anyone who knew anything about Jesse James silencer monstrosity was giving it so much crap – everyone knows that design is terrible. The price on that only made the joke better, but it was the design leading the way.

      • Joe

        What about this design isn’t functional? Have you ever used one? I have used AMTAC’s KAC’s, and Surefire’s. The AMTAC was every bit as quiet, lighter, shorter, and user servicable. I don’t see the downside to the design. If there is one I will happily concede. Btw I have no financial stake in any suppressor company or manufacturer, nor do I sell them, or even own a suppressor.

        • JumpIf NotZero

          Everything, it’s a terrible design.

          And sorry, but your anecdote does not with your calibrated ears stand up to extreme common knowledge in the silencer industry that you never make the bullet travel in an enclosed tube.

          Sure, maybe there is no reason at all that this super commonly tried design doesn’t exist anywhere in any other quality production silencer.

          • Joe

            Whats the downside of a projectile flying through an enclosed tube?

          • iksnilol

            Little sound reduction.

            Part of the reason why shotgun suppressors have universally been crappy.

          • Joe

            So if that’s the only downside than its a trade off compromise. shorter O.A.L. but louder report.

          • iksnilol

            No no, you can have a reflex suppressor without that silly perforated tube in front.

            JumpIfNotZero is complaining about the part that extends past the muzzle. You see how it is just a perforated tube that the baffles are attached to? That’s bad.

          • Joe

            “Sure, maybe there is no reason at all that this super commonly tried design doesn’t exist anywhere in any other quality production silencer.”

            Stranger things have happened in the world of firearms and firearm accessories.

  • lolwut

    So basically its half a faux suppressor and half real. Whats the point.

    • Sianmink

      The gas blows back into that chamber, so it’s not entirely useless.

    • Giolli Joker

      Reflex suppressor.

    • JumpIf NotZero

      I’d give that design 10% “real” status at best.

      It’s supposed to be a reflex, but with the worst possible implementation of one.

  • SGT Fish

    Your better off cutting the barrel down and attaching a sleeve to make it 16 inches. That way you can put a can on and not gain any extra length. Or perm attach a suppressor

  • Dracon1201

    Well, I was interested, until I saw the internals.

  • Geoffry K

    Reflex suppressor. Goofy looking baffle stack. Most of the ones I researched online used cone baffles. I designed one for my 300BLK based on the T8 Scout (Google it), although a bit larger in diameter. Submitted the Form 1 three weeks ago. Blast baffle will be a 304L SS 60° stepped cone and either machined cone baffles or modified Dorman steel expansion plugs.
    I already have a Form 1 5.56 suppressor modified MagLite design. Ridiculously quiet with subsonic ammo. Hammer drop is louder than the shot.

    • Nicholas C

      Nice! Got video of the maglite can?