Firearms; Firearm attachments, namely, modular external rail systems for attaching accessories to firearms; Firearm attachments, namely, mounts for attaching accessories to a firearm; Firearm attachments, namely, adapter plates for attaching accessories to a firearm; Firearm receivers; Firearm attachments, namely, mounts for attaching grips to a firearm; Firearm attachments, namely, mounts for attaching gun sights to a firearm; Firearm attachments, namely, modular external rail systems for firearms; Firearm attachments, namely, mounts for attaching night vision devices to a firearm; Silencers for firearms; Cleaning rods for firearms; Covers for firearms; Case covers for firearms; Grip tape for firearms; Firearm magazine speedloaders; Firearm frames; Triggers for firearms; Gas tubes for firearms; Blast forwarding devices (BFDs) for firearms; Automatic firearm ammunition belts; Butt plates for firearms; Carrying cases for firearms; Cases for firearms; Firearm cases