There are several factors why you should try the AR-15 for home defense. Firstly, you need to understand that this gun can be customized to any extent. You can use it to take down multiple targets. Since the weapon has a 20-30 round magazine capacity, you need not worry at all. The main thing is that this firearm is lightweight and highly versatile. When you look into several weapons, you can conclude that the AR-15 is easy to use. It is a fine gun that is suited for beginners.