Aeroshell 64 Grease

Description

AeroShell 64 (formerly 33MS) is the default aerospace grease that meets mil-spec MIL-G-21164D for barrel nut and receiver extension assembly on AR platform upper and lower receiver threads. As used on complete Umbrella gov/military sample builds, offered here in .5 oz or 1 oz sizes for your own barreling and lower building projects. Unless you run your own shop, the small jar will likely be the only one you will ever need. Consider yourself a pro-builder? Get the larger size for all those rifles you’re working on. If in doubt, buy both and give one to your buddy*. Included with all Umbrella Upper Receiver purchases.

*Not suitable for personal lubrication.

Additional information