Crosman RMCOIL Silicone Chamber Oil, .25 oz Keep your rifle like new with this lubricant specially created for Crosman Spring and Nitro Piston air rifles Silicone Chamber Oil Model Number: RMCOIL Specifically created for Crosman Rifles Use on your Crosman Nitro Piston Break Barrel Use on your Crosman Spring-powered Break Barrel Use on your Crosman PCP (Precharged Pneumatic) Airgun