Patrick Sweeney 
The Gun Digest Book of the AR-15, Volume III 

The Master of the AR-15 Has Done It Again!

The AR-15 has become America’s favorite rifle-and no one knows it better than Patrick Sweeny . Now, in Volume 3 of his best-selling series on the AR, Sweeney unlocks the mysteries behind the piston AR. From factory-stock rifles to do-it-yourself conversions, if there’s anything you want to know about the latest generation of the AR-15s, you’ll find it in Gun Digest® Book of The AR-15, Volume 3.

It’s All Here!

• Piston designs


• Conversions from direct impingement to piston operation


• New manufacturers: H&K, Sun Devil, CMMG, among others


• Magazines and other accessories


• And much, much more!

Whether you’re buying your first AR or building one from the ground up, there’s no better reference than Sweeney’s AR series from Gun Digest® Books. And now, with
Gun Digest® Book of The AR-15, Volume 3, you too, will be an expert on the most popular rifle in America!

About the author

Patrick Sweeney is a certified master gunsmith, film consultant, certified armorer instructor for police departments nationwide, author of many of Gun Digest Books’ best-selling titles, and Handguns Editor for America’s largest general-circulation shooting magazine, Guns & Ammo.