UMP 45 Clone - Need help with .45 3-lug and TiRant - Page 2
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Thread: UMP 45 Clone - Need help with .45 3-lug and TiRant

  1. #11
    N55
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    I am also in the same boat. I bought the GSG9 barrel before doing any reasearch and assumed that all 45 tri lugs were standard. Boy was I wrong.

    I’ll be running the GSG9 mount on a octane 45 as well.

  2. #12
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    Quote Originally Posted by N55 View Post
    I am also in the same boat. I bought the GSG9 barrel before doing any reasearch and assumed that all 45 tri lugs were standard. Boy was I wrong.

    I’ll be running the GSG9 mount on a octane 45 as well.
    POI shift is horrible with it. I actually prefer to shoot this gun without a suppressor. Too bad the threads are absolutely worthless on this GSG9 barrel.

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    Quote Originally Posted by LEEF View Post
    POI shift is horrible with it. I actually prefer to shoot this gun without a suppressor. Too bad the threads are absolutely worthless on this GSG9 barrel.
    So they finally made a silencer adapter to work with that barrel??? Sorry to hear it's not working out for you.
    [Insert Witty Comment Here]

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    Quote Originally Posted by gopherboy128 View Post
    So they finally made a silencer adapter to work with that barrel??? Sorry to hear it's not working out for you.
    GSG9 did come out with their own adapter for their own 3 lug pattern. IMO, quality is decent and comparable to any other 3 lug adapter out there. I just think, when running a suppressor, the disruption in harmonics are always going to affect POI with the UMP in 45, unless its direct thread mount or original HK clamp mount. There is a reason why HK didn't go 3 lug with the UMP.....

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    Quote Originally Posted by gopherboy128 View Post
    My Omega45K with a .45ACP 3-lug setup begs to differ...

    Attachment 220672
    I stand corrected. Looks good.

  7. #16
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    I asked Tommy to cut and thread a shortened USC barrel to the standard US thread pitch for .45ACP in .578x28 so I could use SilencerCo’s 3-lug adapter. It fits my current Octane 45 can, and will also work on an Omega 45K that’s sitting in NFA jail waiting for a good home.

    The SiCo 3-lug locks up tight on the Octane and if I can get some decent weather, I’ll take it out and see how much POI shift there is and report back.

    Here’s the view from a few happy snaps:
    UMP 45 Clone - Need help with .45 3-lug and TiRant-9756311f-a4d3-48ce-a0ac-7676daa99752.jpeg
    UMP 45 Clone - Need help with .45 3-lug and TiRant-f4076752-4bbd-4131-b4f6-cf64795a50d9.jpeg
    UMP 45 Clone - Need help with .45 3-lug and TiRant-ae807fd1-d7b1-4276-993c-215ccade4b13.jpeg
    UMP 45 Clone - Need help with .45 3-lug and TiRant-0f384e2d-9b82-457d-aa3d-da247cf414a4.jpeg

    Overall look as well:
    UMP 45 Clone - Need help with .45 3-lug and TiRant-bc31ed8f-dd48-4f37-b6fe-fc86fe9df657.jpeg
    UMP 45 Clone - Need help with .45 3-lug and TiRant-1ccf7532-0a66-41ea-93cd-20f6e97aa879.jpeg

  8. #17
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    Quote Originally Posted by UltraFudd View Post
    I asked Tommy to cut and thread a shortened USC barrel to the standard US thread pitch for .45ACP in .578x28 so I could use SilencerCo’s 3-lug adapter. It fits my current Octane 45 can, and will also work on an Omega 45K that’s sitting in NFA jail waiting for a good home.

    The SiCo 3-lug locks up tight on the Octane and if I can get some decent weather, I’ll take it out and see how much POI shift there is and report back.

    Here’s the view from a few happy snaps:
    Click image for larger version. 

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    Overall look as well:
    Click image for larger version. 

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    I think you will be happy with that 3-lug and the Omega 45K

  9. #18
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    Quote Originally Posted by UltraFudd View Post
    Here’s the view from a few happy snaps:
    Click image for larger version. 

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    ]
    What sling attachment is that you have the front rail?

  10. #19
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    Quote Originally Posted by skullbox View Post
    What sling attachment is that you have the front rail?
    ERGO Picatinny Rail Sling Mount Fixed HK Loop Aluminum Matte. Available at Midway here: https://www.midwayusa.com/product/56...aluminum-matte

    Also other vendors on the web.

    Manufacturer here: https://www.ergogrips.net/shop/ergo-...ing-hook-base/
    Last edited by UltraFudd; 12-24-2018 at 08:37 AM.

  11. #20
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    Thanks for sharing that!

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