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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, does somebody have experience with a Walther PDP and co-witnessed with a Holosun 407C, 507C, or 508T micro red dot? I mean with original out-of-the-box sights. Is it acceptable or do you need to change it to suppressor high sights? You know, I don't want to change the sights (suppressor...
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