Adapter inserts for firearms to allow for use of different gauges and calibers of ammunition; Bandoliers for holding cartridges or ammunition cases; Bipods for firearms; Covers for rifles; Firearm attachments, namely, modular external rail systems for firearms; Firearm attachments, namely, mounts for attaching gun sights to a firearm; Firearm monopods; Firearm slings; Gun and rifle cases; Gun cases; Pistol stabilizers; Pistols and parts thereof; Rifle hand grips; Rifle stocks; Weapon cases fo...