Firearm attachments, namely, modular external rail systems for attaching accessories to firearms; Firearm attachments, namely, adapter plates for attaching accessories to a firearm; Bipods for firearms; Monopods for firearms; Triggers for firearms; Magazines for firearms; Weapon cases for firearms; Cleaning rods for firearms; Case covers for firearms; Sling straps for firearms; Safety catches for firearms; Cartridge magazines for firearms; Tactical rails for firearms; Tripods and stands for firearms; Cartridge cases for automatic firearms; Cartridge case receivers for automatic firearms; Open sights for use on firearms; Bolt carrier groups (BCGs) for firearms; Firearm attachments, namely, modular external rail systems for firearms; Blast forwarding devices (BFDs) for firearms; Sights, namely, open sights for use on firearms; Firearm slings; Firearm bipods; Firearm cases; Firearm tactical rails; Firearm hand guards; Firearm magazine speedloaders; Firearm charging handles; Firearm attachments, namely, mounts for attaching lights to a firearm; Firearm attachments, namely, mounts for attaching accessories to a firearm; Firearm attachments, namely, mounts for attaching grips to a firearm; Firearm attachments, namely, mounts for attaching telescopic sights to a firearm; Firearm attachments, namely, mounts for attaching laser pointing devices to a firearm; Firearm attachments, namely, mounts for attaching night vision devices to a firearm