Not to be an ass, but if you are serious about possibly using this to save your life, you might want to save a few more dollars. Some glocks can be had for that, but I'm honestly shocked if you can pick one up that cheap. Cheapest I've ever sold one of my Glock 23's, is $425. The $300 range would pick you up a nice Mossberg 500, or a used Remington 870 though. Just saying, $300 is a bit low on something that may save your life or your family's life.