Description Hornady One Shot Gun Cleaner & Lube. Hornady One Shot with DynaGlide Plus is a revolutionary formula developed to prevent firearm malfunctions caused by a buildup of lubricants and grime. Firearms, trailers, and some accessories are only available for purchase in stores. Each location follows all BATF and individual state/county/city laws to insure the desired product is legal for sale. Any info provided online is subject to change, please go to your local store for more accurate information.