Adapter inserts for firearms to allow for use of different gauges and calibers of ammunition; Adjusting knobs for gun sights; Bags specially adapted to hold rifles; Bags specially made for ammunition; Belts adapted for ammunition; Bullet and shell extractors; Butt plates for firearms; Butt plates for pistols, rifles, and shotguns; Covers for firearms; Firearm attachments, namely, modular external rail systems for firearms; Firearm attachments, namely, mounts for attaching telescopic sights to...