The AR-15 rifle is America’s rifle. Derived from the venerable M16 rifle platform, the AR is highly versatile, operating in calibers from .22 Long Rifle to .50 Beowulf. We use our rifles on everything from plinking to hunting to self-defense, and often with a few new accessories you can quickly change the rifle’s purpose. Half the fun of having an AR is buying new stuff to use with it. With that in mind, here’s 10 accessories every AR owner needs.