Component parts for firearms, namely, firearm receivers, firearm triggers, firearm trigger guards, firearm hammers, and firearm safeties; Firearm attachments, namely, triggers, trigger guards, firing pins, and lower firearm receivers; Triggers for firearms; Safety selector catches for firearms; Firing pins for firearms; Trigger guards for firearms; Trigger kits for firearms primarily composed of a firearm hammer, firearm disconnector, firearm safety selector catch, firearm springs, and assemb...