heya. im building a mag from the ground up and am considering upgrading the standard feed body i have to a vertical feed. i know i have to get an emag body. what modifications do i have to make to my rail, sear, valve, or frame to make it happy; if any? also what do I have to do for a barrel so it lines up with the feed, and how would I go about doing it? i dont have a barrel yet, so it isnt an inconveniance to get a new one. any help would be much appreciated.
changing to vertical feed...
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