High security is fine, high maintenance isn't. That is what you will get with the Mossberg 500 Special Purpose Tri-Rail, a pump-action shotgun you can count on for your security needs. The 500 Special Purpose series has the credentials and track record to prove it, passing all stringent U.S. Military Mil-Spec 3443 standards. Mossberg 500 shotguns are dependable and economical, perfect for home defense. This model features an adjustable stock with a 7+1 capacity, and a side saddle to hold extra shells.