Surefire M6, M6LT Silicone Replacement Tailcap Boots
Silicone Tailcap Boots for Surefire M6 and M6LT Flashlights.
These are faithful reproductions of the long discontinued Surefire M6 and M6LT Tailcap boots.

This set include 2 switch boots.

These tailcap boots are made from high quality silicone instead of Surefire's rubber.
Silicone will not dry rot like rubber and will last a lot longer than the stock tailcap boot.