Always modify the more affordable component. Grind a bit out of the trigger very well inside the reduce, not the entrance in the trigger pack. Tag for info. I've an older Stag 16" 9mm AR with zero recoil owing to its excess weight. I was just contemplating the other day https://rarebreedtrigger90123.techionblog.com/35858399/not-known-facts-about-rare-breed-triggers