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  1. PDP
    Intermediate shooter here. I’ve never used a red dot before. I was looking to buy the Holosun 507C X2. I think I understand the need for cowitnessing. That way, if the technology fails you can still use your iron sights?? However, in order to cowitness, do I need to change the original sights...
  2. PDP
    Hi guys, do somebody have any experience with Walther PDP and co-witness with Holosun 407C, 507C or 508T micro red dot? I mean with original out of the box sights. Is it acceptable or you need to change it to suppressor high sights? You know, I don't want to change the sights (supressor sights...
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