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  1. HK LONG GUN TALK
    The mythical HK 437 exists. Is there hope for this botched numbering scheme? https://soldat-und-technik.de/2022/10/bewaffnung/33165/hk437-polizei-schleswig-holstein-beschafft-neue-mitteldistanzwaffen/
  2. HK LONG GUN TALK
    I apologize if this has been asked before, but I am unable to find whether or not a 300 blackout upper on an MR556A1 lower would require any changes to the buffer to cycle properly? Thanks
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