MasterPiece Arms Upgrades Suppressors

MPA suppressor

MasterPiece Arms announced the company upgraded the Sentinel II and Vigilant II suppressors that are designed for the .22 LR.  The upgraded suppressors are a result of re-engineering of the baffle design and the exterior components.  Benefits include:

  • reduced sound signature
  • quieter first round pop
  • improved point of impact shift
  • reduced weight
  • easier disassembly

The aluminum Sentinel II has a dB rating of 116.4, weighs three ounces and is 5.7″ long.  MSRP is $279.99.

The stainless steel Vigilant II is also rated at 116.4, weighs 7.4 ounces and is 5.7″ long.  MSRP is $325.99.

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


  • Mystick

    I love my full-auto .22LR.

  • M.M.D.C.

    That would look great on my Ruger Mark III. Want!

  • JumpIf NotZero

    Those designs are still about two generations behind the Silencerco Sparrow SS and the SWR Specte2.

    Let me know when they match the fit and finish quality, have Oring to protect the threads from getting dirty, are as easy to clean, and are as well tested.

    Until then, IMO, anyone seriously interested in a 22 is wasting their time by not going with the top two in the industry.

    • Criticalthinkingiscritical

      I wouldn’t go so far as to say that if you aren’t buying the best you are wasting your time. That’s true for tattoos but not suppressors (or guns in general).

      I encourage people to buy the best they can afford. If a YHM is in their budget but a Silencero isn’t ($200 can be a lot of money for many people) go with the YHM. This is especially true if a YHM meets their needs. The fact is even the lowest end suppressor will meet the needs of most civilian consumers since they are bought for bling, bragging rights, and hearing safety more than anything else.

      • JumpIf NotZero

        I disagree. Like tattoos, there is pretty much no getting rid of a suppressor. They have almost no resale market because of the hassle involved.

        If all you can afford is YHM… Then WAIT, SAVE until you can get a Surefire, or Silencerco, SWR, or AAC if they ever release a new line with a better mount.

        NFA is almost certainly lifetime purchases.

        • Criticalthinkingiscritical

          Unlike tattoos you can easily get rid of a suppressor. Perhaps it isn’t convenient to see but are most certainly not stuck with it permanently attached to your body (or gun). If you decide you don’t like it stick it in a drawer and buy a new one.

          There are many things which are lifetime purchases. Being a lifetime purchase doesn’t mean you should buy the best there is. Better to buy the one that meets your needs at a pricepoint you can afford. A concept that works well with everything from tuxedos to houses.

  • Criticalthinkingiscritical

    I call shenanigans on their decibel rating. The decibel rating for .22lr changes dramatically between barrel lengths, ammunition manufacturers, velocity, firearm model, elevation, and temperature.

    A suppressor company can semi-accurately state how much quieter a round will be but cannot give an accurate flat rating such as 116.4 with no context.

    Any company that makes such claims loses quite a bit of credibility in my books, especially when masking the the inaccuracy with fancy sounding statements like “10 Shot weighted average using NI Labview Software/GRAS 1/4″ MIC”. Without mentioning the ammunition used, barrel length, gun model, temperature, and elevation such a statement is meaningless.

    Reputable companies make statements similar to the following from Silencero’s website on the specs list for their Sparrow: “41dB** tested with Walther P22, CCI Standard Velocity, 70 degrees, 5100′ elevation”.

    None of this means these Masterpiece Arms suppressors aren’t good, or even superior, to other suppressors It does, though, make me not trust the manufacturer entirely as they know the number they are publishing is meaningless.

    • JumpIf NotZero

      I noticed that but figured I’d let it go. Sound reduction on cans is way overblown IMO though. We’ve reached a point where most 22 cans sound great, most 9mm cans have similar reduction, all 556 cans are loud anyway, so…

      It would be better to focus on things like how easy they are clean (MPA k baffles would SUCK to clean just like the AAC they are copied from), is the mounting system good, is the company going to be I the NFA game in 5 years when I need service, is the weight comparable, is this the product I want to own in 10 years (I like to ask myself if this is the one I I would buy if it was someone else’s money)? Etc

      There are a lot of cans on the market but once you apply all relevant filters, you only have 3 options in any caliber.

      • William

        I give Kudos to MPA for these improvements. Its nice to see new and improved entries into the suppressor market. MPA has been around for 15+ years making weapons. Now they have added suppressors to their product line. With the right approach, technology, engineering, etc, companies can come a long way in a short amount of time. For instance, Silencerco, which is one of the best suppressor manufacturers on the market, has only been in business for 4 years. Just saying.

        • JumpIf NotZero

          Might not be, but that’s written very shilly. And if Silencerco can come out of no where and dominate over companies with 15 years experience in making weapons, what does that say about that “experienced” company?

          • Mystick

            They didn’t have an innovative design? Most suppressors are based on Maxim’s research in the early 1900’s. Modern computer simulations can predict harmonics and other factors that significantly improve the design.

        • macmechanic

          The name MPA may have been around 15 years(I believe since 2001) but didnt really begin to innovate & grow until 2010. Up to the 2008 acquision of MPA & Production CNC by MasterPiece Arms Holdings, MPA had just one employee.

          I worked for Production CNC, & was very familiar with the MPA product line.

    • MilesBelden

      “The decibel rating for .22lr changes dramatically between barrel lengths, ammunition manufacturers, velocity, firearm model, elevation, and temperature.
      A suppressor company can semi-accurately state how much quieter a round will be but cannot give an accurate flat rating such as 116.4 with no context.”

      Huh? It says all that starting at 2:30 into the video . . .

      P22 (not sure on barrel length, doesn’t say). CCI Standard Velocity, 76*F, 46% humidity.

      I figured their attempt at “context” was metering the Prodigy with the same setup?

      • Criticalthinkingiscritical

        I didn’t bother watching the video but went to their website, which doesn’t link to that video anywhere that I can tell.

        They should add all that info to the website.

        • William

          Its on their website, under “Videos”.

          • JumpIf NotZero

            You mean YOUR website?

        • gunslinger

          the irony of your username…

          • Powers


    • William

      If you check out Silencerco’s website, they are using the same decibel meter as the one shown on the MPA video. Same weapon, same ammo. They also show the results on the video’s in the same manner as MPA.

      You should watch the video.

  • Poopfeast420

    I dig it. I don’t care for the MPA embellishments, but I think a quick anodizing will make it look much better. I’d like to see how this stacks up with the Warlock from SWR though.

    • SWRforthewin

      with k-baffles…it wont

  • T. Roosevelt

    I’ve got one of these on a Savage I use to clear my property of Varmint. On a longer rifle this thing really shines.

    The Possums never hear me coming.