Survival World on MSN

The simple mechanics behind the AR-15 gas system

At its core, the AR-15 uses a direct impingement gas system to cycle rounds. This system redirects a portion of the gas ...
Country Living on MSN

Looking for the perfect gift for the man in your life? Start here

There's no such thing as the perfect man, just like there's no such thing as the perfect gift. But, you can find something ...