- Colt Defense
 - Official site of Colt Defence, designing, developing, and manufacturing firearms and weapons systems for the military and law enforcement. - Brownells
- Supplier of accessories and gunsmithing tools.
- Dillon Precision
- Manufacturer, distributor, and mail order source for reloading equipment and accessories.
- Choate Machine & Tool
- Manufacture and sale of rifle stocks and accessories.
- Heritage Gun Books
- Publisher and distributor of the Jerry Kuhnhausen - VSP gunsmithing, gun repair and gun rebuilding manuals .
- GunBlack, Inc.
- Black oxide and manganese phosphate coatings, gun bluing, and Parkerizing.
- Stream Systems
- Home of the Hot*Shot device, a portable hand held electronic device capable of scanning a shotgun shell for identifing lead, steel, bismuth and other shot metals.
- Steyr AUG
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