RWS Spring Cylinder Lube oil Every spring-piston airgun requires a "break in period" before optimum accuracy and velocities are reached. Most airguns require between 500 to 1000 rounds to "stabilize. After this has been accomplished, the mainspring of the gun should only require a light application of Beeman Spring Oil or RWS Spring Cylinder Oil or Dri-Slide on a periodic basis.

This can be accomplished through the slot on the underside of the compression chamber. As with any lubrication, too little oil can be implemented: too much can cause problems use restraint!