The single caveat with using Aluma-Hyde II is that it takes a while to cure. Once it has hardened, its pretty tough. Another brand of gun coatings is Lauer Custom Weaponry's Dura-Coat. I really like it, but you need to spray it with a gun, and it has to be used with an activator. When I was rebuilding guns a lot, I used this, but its twice as expensive as Brownell's.