Gun Digest Book of the Ar15 Author:Patrick Sweeney, Patrick Sweeney *Most popular and versatile rifle in the U.S. - top choice for everyone from girls' high school shooting teams to police squads *Features DIY projects to easily enhance firearm performance Gun Digest Book of the AR-15, Vol. 2 not only covers how well this rifle performs in testing, but also provides projects you can do to enhance your rifle... more »'s performance. Packed with 600 detailed photos, including step-by-step instructions for projects, and a primer on aftermarket parts, this guide delivers honest test results for the rifle, its commonly available ammunition and magazines, and accuracy. There's something in this book for every fan of the AR-15.« less