Are flash hiders legal? For a long time, flash suppressors wereseen as “military” features. For that reason, theywere on the list of federally defined devices that could cause a rifle to be defined asillegal. That applied especially if the lower receiver was manufactured after the Federal A...
One last thing to keep in mind is JP warns that their upper and lower receivers will not be compatible with other non-JP large-frame receivers. Of course, when precision is the primary goal, most shooters would likely go with a matched receiver set for a tight fit, instead of mixing and...