just be sure you always have your jokie little disc's or your screwed knight would be alright but that disc is plain and simple a pain in the a$$. .45 is a good caliber but good luck with the knight and make sure your front site doesnt fall off!!my grandpa runs a gun shop and we have had pry 10-15 guys in about 3-4 come in and want us to put the site on cuz it fell off. and id buy lotsof them pos disc and put some in your gun case your truck and some other locations cuz you may forget them sometime and this way you're set.