Citadel LMC from Hardened Arms


Hardened Arms is offering a new muzzle device that it calls the Citadel LMC. LMC stands for Linear Muzzle Compensator. The object of the Citadel LMC is to direct muzzle blast and noise down range and away from the shooter. According to the company, this is accomplished through the use of “tactical technology.”

For anyone shooting a short barreled rifle or AR style pistol, muzzle blast can be distracting. Depending on the barrel length, caliber and ammunition selection, the noise and blast can actually rival that of a flash bang.


The Citadel LMC does not silence or otherwise suppress the noise of the gunshot. Rather, it redirects it away from the shooter. This results in increased shooting comfort without the need of NFA paperwork to suppress the gun noise.

There are a couple of additional things touted as features for the Citadel LMC. First, when used with a 10.5″ barrel, the Citadel LMC allows you to use the company’s 12″ rails for a little additional accessory space.

The second feature mentioned by Hardened Arms is that the device produces a larger flame signature. While I don’t see this as being a tactical advantage, the company states this “ups the ‘fun’ factor” of shooting a gun with this device attached.

The LMC has a suggested retail price of $109.99.

Richard Johnson

An advocate of gun proliferation zones, Richard is a long time shooter, former cop and internet entrepreneur. Among the many places he calls home is


  • Anonymoose

    Copying Noveske’s copy of the Bulgarian AK device…but is it an improvement? How do they stack up side-by-side?

  • Johnsmyname

    The guys at Black River Tactical have been selling their Covert Comp for years. This looks very similar. It would be nice to see better pics of the inside, or better yet a cross section.

  • I wonder how well just a 3.5″x 1.75″ open ended tube would work, sort of like a blunderbuss. Would that reduce the sharp ‘crack’ to a lower, boom like report?

    • SGT Fish

      Like a kak flash can for 20 bucks? They work real well actually

    • roguetechie

      There’s all manner of existing setups much like that.

      • The perils of not googling before posting 😉 I’ve apparently described the KAC flash can.

  • Gary Kirk

    “Accomplishes this through “tactical technology”…”


    • roguetechie

      To think my levang just uses normal technology

      • John Yossarian

        But this one has foreskin!

        • roguetechie

          Well that perfectly explains the extra $90…

          Now if only I could find a Moyle / gunsmith somewhere….

    • B-Sabre

      Almost, but not quite, as good as ninja-neering.
      Unless it’s tactical ninja-neering….

      • Gary Kirk

        Tactically operational ninja-neered technology

        • B-Sabre

          By tactical operators operating operationally!

    • Russ Kell

      Hardened Arms and Cobratac, masters of slickguns spam.

    • nova3930

      Tactical derpnology?

    • Edeco

      …tactnology, if you will.

      • B-Sabre

        And if I won’t?

        • Edeco

          Well, you retain extra sylables

          • B-Sabre

            Fair enough.

  • Tinkerer

    Have Newton’s laws got repealed or something?

    • Cal S.

      This is 2017, man!

    • B-Sabre

      I reject your reality, and substitute my own!

  • thedonn007

    It looks like you have to clock this one. One of the benefits of these devices is that you do not have to use a crush washer, or shims to clock the muzzle device.

  • Hoplopfheil

    What’s the weight?

    I have a Doublestar Carlson Tac Comp (linear comp) on my AR pistol, and it works very well. Unfortunately it’s a bit on the ugly side, and weighs like sixty pounds.

    I wouldn’t mind spending a bit extra for something a bit sleeker and (most importantly​) lighter.

  • B-Sabre

    So how Hardened are these Arms? Where do they sit on the Rockwell scale?

  • 22winmag

    There is the Gogun Supercomp… and then there is everything else… like this.

  • Charles Applegate

    Yawn. Call me when they achieve something by way of STRATEGIC technology.

  • mazkact

    Just how different is this from not having a muzzle device ?

  • mazkact

    This craze of long hand guards with short barrels certainly will not lead to unfortunate accidents………………………reckon?

  • DaveGinOly

    If the device vents out the front (as it appears to do) then it will be an “anti-muzzle brake” and will likely increase felt recoil. For every action, there is an equal and opposite reaction. Gasses go forward, thrust pushes back.

  • Risky

    Perfect item to give your rifle that uncircumcised look.