Veteran retired city police captain, NRA Police Firearms Instructor, In this updated HD format, NRA Distinguished Expert, sniper instructor, certified factory trained armorer for Ruger, S&W and Remington, long range varmint shooter, and game hunter explains the proper way to oil a firearm, to keep it in top condition, and the things to avoid. Even if you saw GunBlue490's first video, this one presents additional material not seen in the first.