Ken,Tesla Seal from ARH is what I would use, if you have a coil spring use the ARH E3650 Spring.After you take the gun apart the first thing you are going to want to do is remove all of the old lubricant, hot water and dawn dishwashing soap works wonders, stay away from harsh solvents.After that I usually take the compression tube and using a rotary deburr tool and files I round all of the edges of the cutouts on the tube, then I use a 7/8" dowel with a split in one end the length of a piece of 400 grit wet dry sand paper (I use the same dawn soap lightly mixed in water) then I polish the bore, more hot water and then some compressed air to dry it out, lube immediately or it will rust.Use a very light cote of lubricant, if using the prescribed Moly-Paste then you will want to make a swab to go up in the tube and make sure you put a very fine film on the inside, if you are using Krytox or Ultimox then you can be more liberal with the lubricant as it won't diesel..Reassemble, install the new trigger and shoot....