This means that you'll be able to search for NAICS codes directly (if that's your jam). We'll do the math; let's make better data on public procurement together.
Guns, over 300 mm
Breech Mechanisms; Training Gears; Power Drives.
Possible NAICS Codes
332994 – Small Arms, Ordnance, and Ordnance Accessories Manufacturing
922120 – Police Protection
423490 – Other Professional Equipment and Supplies Merchant Wholesalers
332992 – Small Arms Ammunition Manufacturing
326199 – All Other Plastics Product Manufacturing
928110 – National Security
423840 – Industrial Supplies Merchant Wholesalers