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Curious why you guys use quad rails? Is it an appearance thing? Op what is your intended use for your pistol? That would dictate for me how I would dress it out.
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Quad rails were great back in the day, but they tend to be heavier - as you have Picatinny rails on all 4 sides whether you need them or not.
An M-lok or Keymod rail can end up saving you substantial weight as there is just the top rail plus whatever you want to add for rail sections.
Basically, the only things on the hand guard are the things I want/need - a back up front sight (taking advantage of the longer sight radius offered by a rail), a QD for a sling, and a short section of rail for a light that I'll sometimes attach.
Another potential advantage of a quad rail, M-Lok or Keymod hand guard is the potential to also incorporate a free float tube with it. Free floating tends to improve accuracy, provided the barrel is a quality barrel that has been properly stress relieved.