I get the 16oz liquid cans. I had a small bottle of RemOil that I never used, so I poured the RemOil out, washed, rinsed, and dried the bottle, then filled it up with Ballistol. It has a narrow nozzle to get into small places to put a drop of oil. I put a small drop of oil into the rear of each slide rail and hold the slide with the muzzle down to let the drops move down the rails to the muzzle end with gravity. Once they reach the muzzle end I wipe the excess away at the muzzle end. I put another small drop in the slide where the top of the barrel hood rubs against, and use a folded patch to smear it around everywhere I see wear from the barrel rubbing against it, then I use the patch to wipe inside the muzzle hole in the slide for the barrel. I put another small drop between the barrel lugs, then use the same folded patch to smear the oil around in between the barrel lugs. Then I turn the barrel over and use the patch to smear oil at the top front of the barrel hood where it locks up with the slide. Then I put another small drop on the round portion of the barrel and smear it around the wear marks where it rubs inside the slide. Then I use the patch to wipe the lip of the barrel that engages the slide lock. Then I put the barrel in the slide and put the guide rod in, and I use the patch to wipe the bottom of the barrel lugs.
For the frame I put a small drop of oil under the connector arm so the drop falls down into the interface between the connector and trigger bar. I use the oiled patch that I used on the slide to wipe the part of the slide stop that engages the slide to lock it back, the lip of the slide lock that engages the barrel, the sloped surface of the arm of the trigger bar that engages the firing pin safety, the sear tab of the trigger bar, the part of the locking block that the barrel lugs ride on, and finally the frame rails.
Right before I put the slide on the frame, I use the oiled patch to wipe the notch in the slide that the slide stop locks into and rearward of that notch back to the slide serrations. I lightly oil the surface of a q-tip and wipe the muzzle-facing surface and bottom surface of the firing pin lug, and the side of the ramp on the bottom of the slide that pushes the connector to the side. Then I put the gun together, rack the slide about 20 times, check that the gun is unloaded and dry fire 5 times.
My method of oiling is probably too generous in some areas, but I detail strip and clean my Glocks often.
You could probably accomplish the same thing without using drops of oil, but simply an oiled patch to wipe each area. For the interface of the connector and trigger bar you could probably spray a q-tip until a drop of oil forms on the q-tip and let the drop fall into that interface.
[ame]http://www.youtube.com/watch?v=pGobEpUO3Uc[/ame]