Yankee Hill Machine 7.62mm Muzzle Brake - YHM 3080-MA

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Thread: Yankee Hill Machine 7.62mm Muzzle Brake - YHM 3080-MA

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    Senior Member Clyde's Avatar
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    Yankee Hill Machine 7.62mm Muzzle Brake - YHM 3080-MA

    I have been looking for a muzzle brake that is reasonably priced that would offer recoil reduction as well as function as a compensator to help control muzzle rise so the shooter can get back on target faster.

    I purchased this one today (hey, it's the 4th of July -- what better way to celebrate than hit the LGS?) that is made by Yankee Hill Machine.

    The design of the gas ports caught my eye -- they direct the gases backwards and to the side like the factory-supplied Primary Weapons System brake on the SCAR 17, and the six compensator ports up top reminded me of the compensators on my Springfield Armory M1A SOCOM 16 and SOCOM II.

    My dealer cut me an incredible deal -- these retail for $68, but he sold me one for only $35 (it pays to be nice to people) -- the manager at the store snagged the other one when the owner said he could have the same deal....

    Here is what it looks like, and it comes with the crush washer in the package (I propped the brake up on the crush washer to keep it from rolling, in the first picture...):



    Bottom side view -- shielded to keep dust and debris down when firing:



    Top side view showing the six compensator ports -- this is how it would look installed on the barrel:



    Closer detail on the muzzle blast ports on the side, showing the angled machining cuts to deflect the gases rearward and sideways:



    One feature that really caught my eye was how Yankee Hill Machine machined a recessed crown on the muzzle brake, which should aid in accuracy:



    It is threaded 5/8-24, so it will interface with the SCAR 17S...not sure if this will work given the fact that the 17S does not have much of a flange or metal rim behind the PWS brake...but after trying it out just now, I think I will install this on my Remington 700 SPS Tactical AAC-SD, since it has a threaded barrel that will handle the muzzle brake's crush washer well, and since it looks good on it. I really like the PWS brakes that come from the factory on the SCARs....

    One of these days I will replace it with a suppressor and related mount....
    Last edited by Clyde; 07-04-2012 at 10:18 PM.
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    Last edited by Talhoffer; 07-04-2012 at 10:42 PM. Reason: dumn ass double posting




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    You could run it if you wanted on the SCAR17. In this case the crush washer wouldn't do you any good, you'd just end up driving the crush washer up and over the shoulder of the barrel. All you need to do is install the YHM brake with the factory PWS jam nut to index the new brake since it's not being used for a suppressor.

    I use the factory jam nut here to index the A2 flash hider

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    Senior Member Clyde's Avatar
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    I appreciate your input, Talhoffer, as always -- I suppose I could just double-wrench the YHM muzzle brake onto the PWS jam nut, with the crush washer in between, but I am concerned about getting it clocked right -- or indexed as some people say -- I think I would need a couple extra crush washers, which are available from YHM, just in case I end up FUBARing my only crush washer.

    I do like how it looks on the .308 SPS Tac -- that is much less problematic to get it clocked right (properly indexed) and the barrel has a huge honking shoulder on it, so it'd be easy to do.
    Amat victoria curam

    It is not the strongest of the species that survives, nor the most intelligent. It is the one most capable of adapting to change.

    -- Charles Darwin, and what he actually wrote about species evolution

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    Senior Member Clyde's Avatar
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    Hey, Tal, quick question -- since I plan on putting a suppressor on the SPS Tac one day, should I use some anti-seize compound on the muzzle brake threads so I can take it off easier later? I thought about blue Loctite, but I think that will fail if the brake gets real hot. Usually anti-seize is used for dissimilar metals, but it may help aid in subsequent removal -- whadda ya think?
    Amat victoria curam

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    -- Charles Darwin, and what he actually wrote about species evolution

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    You don't need the crush washer in this case, that is what the jam nut is for...........to index the YHM muzzle brake.

    You leave the jam nut in place, thread off the factory brake, thread on the YHM brake, index it, and lock the factory jam nut against the new YMH brake. that's it, done.
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    Quote Originally Posted by Clyde View Post
    Hey, Tal, quick question -- since I plan on putting a suppressor on the SPS Tac one day, should I use some anti-seize compound on the muzzle brake threads so I can take it off easier later? I thought about blue Loctite, but I think that will fail if the brake gets real hot. Usually anti-seize is used for dissimilar metals, but it may help aid in subsequent removal -- whadda ya think?

    You could use Anti-Seize if you wanted but not really needed, I haven't had a muzzle device get seized on yet, even with a s@#T load of carbon build up on it. I wouldn't worry about using loctite if you use it on the bolt gun with the crush washer, the crush washer will do a good enough job of holding it by it's self.
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    Last edited by wagnasty; 07-04-2012 at 11:25 PM. Reason: cr*py picture
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    What's the benefit of this over the stock muzzle break?

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    Senior Member wagnasty's Avatar
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    Quote Originally Posted by kitchen sink View Post
    What's the benefit of this over the stock muzzle break?
    can mount a suppressor on it...among other things...
    Trample the Weak, Hurdle the Dead

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