Aeroshell 33 MS Grease Kit (Specifically Sized for Gun Owners and Builders) , Best Gun Grease , MIL-G-21164D (1/4oz) Aeroshell 33 MS grease in a hard to find size. Mil-Spec grease in easy to use quarter ounce container for use with guns and other smaller applications. MIL-G-21164D - Approved AR Grease / AR Grease / Gun Grease Comes with pair of vinyl gloves and brush for easy application