Quote:
Originally Posted by supermario
Does that mean, if i have an upper upgraded with the pws gas piston i will no longer use my front sight post. I will then need a new front sight right to mount on the gas block? Sorry new to this!
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Yes you will have to remove the original front sight post. It will be replaced by a gas block with a rail on it and then you can mount any type of sight you want(flip up ,fixed or nothing).