RWS Spring Cylinder Oil is a premium airgun oil that includes additives to prevent rust. It is advised for use on the mainspring, barrel pivot pin, and cocking lever of your air rifle. For precise and simple application, you might want to add an RWS Lubricant Applicator Needle to your purchase. Every 1000 shots, it is recommended to apply 5 to 6 drops to the mainspring, barrel pivot pin, and cocking lever. Avoid excessive lubrication. The compression chamber should not be lubricated with this oil.