Gun Digest Book of the AR-15 Vol. 4

With manufacturers branching out into nontraditional calibers, and continual advances in optics, ammunition and associated gear for the AR-15, Gun Digest Book of The AR-15, Volume IV brings you up-to-date on the latest developments in the Black Rifle industry. Just about anything and everything you could want to know about the AR-15 is covered in this book. What's more, Patrick Sweeney takes you through a series of torture tests that he conducted on a variety of different AR-15s. Kick back and watch in horror as events unfold and find out which guns survive. 288pp.