[PDF] NIGHTHAWK - Umarex USA NIGHTHAWK patented ® Content Page Please read this owner's manual completely. This air pistol is not a toy. Treat it with the same respect you would a firearm. Always carefully follow the safety instructions found in this owner's manual and keep this manual in a safe place for future use. Umarex USA. Product Manuals A listing of Umarex airgun manuals sorted by brand. Click the link to download a PDF file of the manual. For the most current manual, please check the individual product page.