Establishments primarily engaged in manufacturing small firearms having a bore 30 mm. (or 1.18 inch) or less, and parts for small firearms. Also included in this industry are establishments primarily engaged in manufacturing certain weapons more than 30 mm. which are carried and employed by the individual, such as grenade launchers and heavy field machine guns. Establishments primarily engaged in manufacturing artillery and mortars having a bore more than 30 mm. (or more than 1.18 inch), and component parts, are classified in Industry 3489.

• Barrels, gun: 30 mm. (or 1.18 inch) or less
• Carbines, 30 mm. (or 1.18 inch) or less
• Carts, machine gun and machine gun ammunition
• Clips, gun: 30 mm. (or 1.18 inch) or less
• Cylinders and clips, gun: 30 mm. (or 1.18 inch) or less
• Firearms, 30 mm. (or 1.18 inch) or less
• Grenade launchers
• Gun sights, except optical: 30 mm. (or 1.18 inch) or less
• Guns, 30 mm. (or 1.18 inch) or less
• Guns, dart: except toy
• Guns: BB and pellet
• Links, for ammunition 30 mm. (or 1.18 inch) or less
• Machine gun belts, metallic: 30 mm. (or 1.18 inch) or less
• Machine guns and parts, 30 mm. (or 1.18 inch) or less
• Magazines, gun: 30 mm. (or 1.18 inch) or less
• Mounts for guns, 30 mm. (or 1.18 inch) or less
• Pistols and parts, except toy
• Pyrotechnic pistols and projectors
• Recoil mechanisms for guns, 30 mm. (or 1.18 inch) or less
• Revolvers and parts
• Rifles and parts, 30 mm. (or 1.18 inch) or less
• Rifles, high compression pneumatic: 30 mm. (or 1.18 inch) or less
• Rifles: BB and pellet
• Rifles: pneumatic, spring loaded, and compressed air-except toy
• Shotguns and parts
• Submachine guns and parts