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814 16
UMP 45 magazine
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Home of the 3d printed UMP, UMforthePoors @Mprtech2:e
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RELEASE // lbry // eb27649eaa707ea9d9413f1…
Released January 13, 2022, 9:31 AM Indexed March 9, 2026, 12:55 AM 6.8MiB

Uses either glock 30 rd spring or colt smg spring.

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    EOCD Analysis Pane
    • Mag new +4
      • base plate hole resized.stl 25.6KiB
      • Follower 4.0 manifold.stl 55.2KiB
      • Spring stop resized.stl 18.1KiB
      • UMP45 mag manifold.stl 21.3MiB
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