Building an Integral Mark II Ruger silencer

Discussion in 'NFA - Stamp collecting' started by wired, May 19, 2020.

  1. wired

    wired Active Member

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    I guess I'll do a step by step integral silencer build. Ive got 3 in the works but this is the first of the batch. I wont have the gun for a few weeks and the baffles havent shipped yet either. Using a 2000 ish Vintage Ruger Stainless Mark II Competition .22 Lr. I will be cutting the barrel back to 3 inches and using a non rotating silencer tube with titanium baffles from quiet bore. The tube I am using is 304 SS 1" OD mill finish 0.065" wall cut to 7 3/4" length. I trued it up in a lathe and broached the tube for a 1/8" key . I will not be threading the back of the tube but will instead solder ( or weld ) in a plug that I will use to tighten the tube up to the receiver and tension the barrel. The baffle stack will go in after that.

    Anyway first step. The tube is nominal .870" ID which is more like .872" so a 7/8" Dumont broach will fit after getting pressed in. Then the broach cutter pushes through and cuts a slot for a key. I will be using a woodruff key cut into the rear of the barrel. It wil;l become more evident what I am doing once the gun arrives. Heres a mockup of the broach cutter but it does go all the way to the tube.

    [​IMG]

    And the completed 1/8" broad after knocking the plug out. It was tight.

    [​IMG]


    I'll post more segments as parts come in.
     
    Last edited: May 19, 2020
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  2. JT

    JT Well-Worn Member Benefactor Life Member Supporting Member

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    First off, I wish I had the foggiest notion of what you're talking about! :confused:

    I have neither the skills, the tools, nor the knowledge to do this (or even understand it).

    As much as I'd love to silence my MkII.

    Curious -- why are you cutting back the barrel -- to make it less unwieldy, or is there something more scientific?

    I'm going to try to follow this project ... unless my brain-ache gets worse as it goes along. :D
     
    Last edited: May 19, 2020
  3. wired

    wired Active Member

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    Good thing about Mark II's is they grow on trees.

    For an integral you want the barrel stub to be 2-3 inches max. Keeps most ammo subsonic and really the shorter the barrel the better the sound 800-900 FPS is ideal.

    End result will something like this...

    [​IMG]
     
  4. wired

    wired Active Member

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    This is I'm starting with.

    [​IMG]
     
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  5. JT

    JT Well-Worn Member Benefactor Life Member Supporting Member

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    Well, that answered a question I didn't even know I had. :D

    That integral configuration is going to be really attractive! I look forward to following this!
     
  6. JimB

    JimB Picking it up slowly. Benefactor Charter Life Member

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    Hey, I could use that upper, you want to trade for a stainless 6” bull barrel upper since you’ll just be cutting it down anyway?
     
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  7. wired

    wired Active Member

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    There's a reason I bought that one.
     
  8. JimB

    JimB Picking it up slowly. Benefactor Charter Life Member

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    I hear ya. I own maybe 10 mkII’s and while a few are more accurate than average the advantage of the model you have in general is that it's better balanced. Of course you won’t know how it shoots until you cut it down, but at that point there isn’t much going back. I have one I cut to 2” and it shoots surprisingly well.

    good luck with your project.
     
  9. Scsmith42

    Scsmith42 Member Benefactor Charter Life Member

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    An integrally suppressed .22 is on my to-do list. I was thinking of using a Browning Buckmark for a host though.

    I'll watch this thread with interest.

    Any accuracy issues with the short barrel?
     
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  10. wired

    wired Active Member

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    I have several very short barrel pistols. Accuracy is in no way affected . I have one 2 inch barrel suppressed high standard I can knock the tips off matches at 10 yards.
     
    Last edited: May 19, 2020