Hello all, I just joined and this is my first post. I scoured several threads to see if my question was answered - I didn't see any specific answer. I just purchased my first Glock. I have a little experience in pistols, but revolvers only. I will be attending an extended Police Academy in January under open enrollment (no agency affiliation at this point). We are required to purchase our own equipment and figured I would get a head start. They indicated the Glock .40 22 model is a standard Law Enforcement service weapon and I went ahead and purchased the compensated version. I have heard nothing but great reviews and feedback on this forum. My question relates to cleaning it. The instructions and owners manual do not discuss the use of oil or lubrication, but I have been hearing and reading that there are three sections on the slide that require it. Right now there is a copper/oil residue on a few sections - but I need to know specifically where to put the lubrication and how much. I understand the copper residue is for periods of lengthy time between cleaning, but I imagine I will clean it frequently (policy and my own obsessive personality). If any one has a suggestion or at least a link or two to share, I would be most grateful. I look forward to become very active on this Forum.