i did this to my 45. skip the skate board tape, go to your hardware store and get the non slip tape for steps. this stuff is great. it should cost you about 40 cents for one gun. my only complaint is that i can only find black tape, and my gun is stainless. but, function is more important than looks to me.
when it comes time to take it off, if you have problems you can use lighter fluid to remove the adhesive. put a little on a rag then wipe it over the adhesive.