Lubricant MS1 by TR Robb
Lubricant specially formulated for Airguns. I have mixed these lubricants over many years to get the best out of airguns.
MS 1 which is a general purpose oil that is sticky to stay where you put it. This can take quite high pressure under load, (Lubricant pressure under load, obviously not air pressure). This is MS1 with an applicator brush so you can Lubricate exactly where required.