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ISSC SCAR MK22-CA muzzle brake removal

Discussion in 'Maintenance & Gunsmithing' started by LX Kid, Dec 1, 2015.

  1. LX Kid

    LX Kid W. Central Florida New Member

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    I just bought a SCAR MK22 that was made for the Californification market and has a fixed stock, easy fix there, and a cheesy muzzle brake that I want to remove. Does anyone know if it is permanently installed or will it screw off? I live in a "Free State" and we can change that!

    20151214_155433_zpswp5kxgds.jpg

    d29cd9dc-6379-4edb-9192-ae748d216d63_zpsjxysft9e.jpg
     
    Last edited: Dec 16, 2015
  2. Velzey

    Velzey Estacada, Oregon Gunsmith Gunsmith Bronze Vendor Bronze Supporter

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    I'm pretty sure it's pinned and then welded. I use an endmilll on the milling machine to remove the weld and pin. As it's harder than heck in the area welded.
     
  3. LX Kid

    LX Kid W. Central Florida New Member

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    Then y0u haven't actually done one on these rifles before? I looked all around the brake and found no sign of a pin. Thanks
     
  4. rick benjamin

    rick benjamin USA, Or, Damascus Secure the drama Silver Supporter 2016 Volunteer

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    Manual page 30, flash hider (66) screws into the threaded sleeve (59).
    Googling Mk22 flash hider shows
    Scar MK22-flash hider and threaded sleeve.jpg
     
  5. Velzey

    Velzey Estacada, Oregon Gunsmith Gunsmith Bronze Vendor Bronze Supporter

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    Nope I haven't actually done one, I've done 3. And all had been blind pinned and tig welded then coated so you couldn't see it. Now these were all worked on by another gunsmith in California. So I'm sure he was making them "legal" in his eyes. And when I unscrewed the first one I messed up the threads, since I didn't see the blind pin. But new threads are easy! Just cut it done a little...

    Rick has some pretty google power and has come up with a MK22 manual ;) and they come apart just like all the ones Walther is making....
     
    Medic! likes this.
  6. LX Kid

    LX Kid W. Central Florida New Member

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    Thanks for that info. My manual must be different. Mine is dated 09/2011 and on page 30, last page, is the back cover index page. Glad Rick Benjamin found that Cheaper Than Dirt photo. Didn't know it was a barrel shroud instead of being a barrel. Think I'll just live with it or lathe out one to go over existing one if one isn't commercially available. Thanks guys!

    Going to work on the bolt recoil spring sometime this week. I can tell, when dry firing, how weak the firing pin strike is. (Cut the coils!) I also really hate having to have the mag inserted in order for it to fire. (Next mod.)
     
  7. LX Kid

    LX Kid W. Central Florida New Member

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    Worked on the firing pin return spring yesterday. What a nightmare to disassemble. My rifle is a new model and bolt disassembly is not like the ones I see on YouBoob. I could not get the screw, that holds the firing pin, out as it is the smallest Torx screw I've ever seen. My Torx set only goes down to a T-10, which is small, but looks like that screw is about a T-6! Sooo I had to force the bolt cover off to get at the spring. One I did it appears that ISSC corrected it with a lighter tension spring. So I put it back together and hope there are not failure to fire rounds. I have as of yet not fired my new MK22.
     
  8. Certaindeaf

    Certaindeaf SE Portland Well-Known Member

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    How are you "going going to work on" a weak spring.. stretch it out just a tad?
    The first thing I woulda done would be to shoot the rifle before modifying it in any way.. to at least establish a benchmark/baseline and or to see if the rifle is just a dog and doesn't work at all, blows up or won't hit the broad side of a barn or you just don't like it.
     
    jbett98 likes this.
  9. LX Kid

    LX Kid W. Central Florida New Member

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    You don't understand. The "common " problem for these rifles, right out of the box, has been too strong a firing pin spring where the hammer can't overpower it and causes a light strike and get many FTF's. Go check it out on YouBoob to see what I'm describing. I wanted to get a jump on the fix cause I don't get a chance to shoot often.
    20151214_155433_zpswp5kxgds.jpg
     
  10. Certaindeaf

    Certaindeaf SE Portland Well-Known Member

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    I guess everybody needs a hobby.
     
    Medic! likes this.
  11. LX Kid

    LX Kid W. Central Florida New Member

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    And a darn good one it is! Just wish it wasn't so expensive.
     
    rick benjamin likes this.
  12. LX Kid

    LX Kid W. Central Florida New Member

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    I gotta get that scope off the rifle! It just doesn't look Tactical. After all we do like dressing them up and taking them out somewhere! LoL I have a NcStar pistol scope coming, hopefully tomorrow, and will give it a better, sleeker look. I "think" it is a 4 power but maybe a 2 power. Getting old and can't remember things. But I never forget when it's time to eat! Ha LoL ;)
     
  13. LX Kid

    LX Kid W. Central Florida New Member

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    I'm betting that the "barrel stubby" had been epoxy on cause it's a California model and it's a barrel shroud. I'm emailed ISSC in Austria and they are going to locate someone to answer my question here in the states. No one seems to know and I don't want to screw my barrel shroud up just cause I get anxious. "Haste makes waste!" As the saying goes.
     
  14. Ashdevil

    Ashdevil Alabama New Member

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    Counter clockwise or Clockwise to remove?
     
  15. Ashdevil

    Ashdevil Alabama New Member

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    How hard was it to get the muzzlebreak off? Clockwise or counter?.....Also their customer service sux, I bought a new one in Dec and had mag issues. They directed me to ATI which said they don't keep the guns or mags on hand so they couldn't remedy the issue but told me to send them the gun anyways...ISSC Austria said not to send gun that they would resolve the issue, that's been a month and 4 unanswered emails now with no mag or replies now.
     
  16. rick benjamin

    rick benjamin USA, Or, Damascus Secure the drama Silver Supporter 2016 Volunteer

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    Counter to remove
     
  17. Ashdevil

    Ashdevil Alabama New Member

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    Thank you
     
  18. LX Kid

    LX Kid W. Central Florida New Member

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    Thank you. I'll give it a try when I get a chance. I hope it comes right off and not epoxy on.
     
  19. LX Kid

    LX Kid W. Central Florida New Member

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    Yup, a rag wrapped around and some pliers and came off with a little persuasion. Had a lot of Lock-Tite on the threads. Thanks again!
     
    Ashdevil likes this.