Birchwood Casey Rig Universal Gun Grease 3oz Jar. Birchwood Casey RIG Gun Grease 3oz Plastic Jar is a great cleaning kit for protecting your weapons be they shotguns muzzleloaders handguns or rifles. One treatment from the Birchwood Casey RIG Universal Firearm Grease and your weapons will be protected for a long time to come. Specifications for Birchwood Casey RIG Universal Gun Greaser: Weight: 3oz Vessel: Plastic Jar Features of Birchwood Casey RIG Gun Lubricant: Keeps firearms rust and corrosion free Long lasting Package Contents: Birchwood Casey RIG Universal Gun Grease 3oz Jar 40027 Birchwood Casey BC-40027 Rig Universal Grease 3 Ounce Jar BC-40027