SWD M11/9 SMG cracked upper

Discussion in 'NFA Firearms and Accessories' started by msmp5, Jun 27, 2021.

  1. msmp5

    msmp5 Member

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    5AEA1DD6-6EF4-44FD-A8ED-93C0149D68EE.jpeg SWD M11/9 SMG cracked upper
    I recently discovered a crack in the upper of my SWD M11/9. It is just below the ejection port, cracked completely, through and through. Can this be re-welded? Or just easier to buy a complete new barrelled upper? Is there a good source for OEM MAC, SWD, and/or Cobray parts? ....... specifically, a new barrelled upper for my SWD M11/9 SMG?
     
  2. jmorris

    jmorris Member

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    It could be repaired, I’d use a TIG welder for the job.
     
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  3. MachIVshooter
    • Contributing Member

    MachIVshooter Contributing Member

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    Yep, TIG repair.

    If not dimensionally or aesthetically precluded, a reinforcement seems like a good idea.
     
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  4. trackskippy

    trackskippy Member

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    I had the same thing happen with mine, but it was back in the 80's and they were still making guns and parts were readily available. I went the replacement route, as they were cheap (around $50) and it was easy.

    I found out pretty quick the M11/9mm's were OK with standard velocity ammo, but the hotter SMG stuff wasnt good for them. What you see above happened with some surplus SMG 9mm that was readily available at the time, and it took less than a case to do it.

    The first thing to go was the charging knob sheared off, and the way the gun ran should probably been an indicator that things might have been a bit to warm. It ran a good bit quicker and you really felt it in your cheek through the stock arm.

    enhance.jpg

    I stopped using the hotter ammo with the replacement and got another 30 years out of the gun without any problems before I sold it.
     
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  5. msmp5

    msmp5 Member

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    Can anyone recommend a good source for OEM Cobray, SWD, MAC, etc parts? I’ve heard that complete replacement barreled uppers for these aren’t too expensive, but have yet to find a source for them.
     
  6. 1KPerDay

    1KPerDay Member

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  7. msmp5

    msmp5 Member

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    Yeah, but their website is not real clear. Their listing for the barreled upper doesn’t specify caliber, or whether it’s for an SWD, or a MAC, etc. Strange.
     
  8. 1KPerDay

    1KPerDay Member

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    you could give them a call...
     
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  9. GE-Mini-Gun

    GE-Mini-Gun Member

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    Gordon and 1KPerDay like this.
  10. trackskippy

    trackskippy Member

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    Gordon likes this.
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