Hk33k Trunion
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Thread: Hk33k Trunion

  1. #1
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    Default Hk33k Trunion

    Can anyone confirm that the Trunion is the same for both hk33 and Hk33k. Bought a demilled kit with a damaged Trunion, need to have it swapped out so want to make sure I’m buying the right one.

  2. #2
    Gets the Shakes if No HK Contact in 24 Hour Period
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    The gunsmiths cutting down hk93's into 53 and 33k's use the factory 93 trunion most of the time so it shouldn't matter. I want to say the 53 trunion is marked but its the same.

  3. #3
    The Librarian
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    HK93, HK33 and HK33K are the same trunnion. Most 53 are built on the same trunnion. Only difference is cosmetic. The numbers 53 are stamped inside the front relief and there are slight differences in the milling which can be seen upon comparison on the underside of the trunnion.
    "...but just like every other clone, they are copies of the original and copies are never as good as the original."

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  5. #4
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    53 trunnions have a larger diameter "dish" cut for the set back cocking tube.
    MM
    bauerdb likes this.

  6. #5
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    Thanks! That helps.

  7. #6
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    Does anyone know of the cocking tubes are the same on a 33 and 33k? Thks

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