Gideon / UMP 10mm
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Thread: Gideon / UMP 10mm

  1. #1
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    Default Gideon / UMP 10mm

    I just saw the Gideon UMP 10mm. Ad said it uses modified 40UMP mags. How are the mags modified? Did they just replace the follower? Anyone who knows please let me know.

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    Really? No one has any info or input on this.

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    I will be getting a conversion kit soon and I am going to work the magazines myself. Doesn't appear to be too involved but time will tell when I get a program in my mill

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    Keep me posted on mag conversion. Where did find a conversion kit.

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    I also would love to know where you got a conversion kit.

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    Tom Bostic posted them on his page so I assume he will be stocking them soon. When they are available I will get one.

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    Would love to have a 10mm conversion kit on hand in case I gotta shoot a bear through my wall into my neighbors house into the back yard where the bear is

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    I looked at a 40 mag this weekend. I see how it is modified to take 10mm. Looks simple if you have the right tools.

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    Quote Originally Posted by ybnqskp View Post
    I looked at a 40 mag this weekend. I see how it is modified to take 10mm. Looks simple if you have the right tools.
    How about some pics? :)

  11. #10
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    Quote Originally Posted by tlrgsxr View Post
    How about some pics? :)
    I looked at an unmodified 40 ump mag. There is a groove that the follower fits in. That groove needs to be milled down for a 10mm round to fit in.

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