I have one video (VHS) from Bill Wilson produced by Lenny Magill Productions with complete information on how to shoot, disassemble, maintain, and lubricate and reassemble Glock pistols. Information applies to Glock models 17, 17L, 19, 20, and 21. Length is 90 minutes. This description was taken directly off of the cover of video. My email is Neyer196@MSN.com, cash or money order only. $8.00 includes shipping and handling. Thanks for looking.