In gun digest book of the ar 15 learn everything you need to know about the ar 15 operating system and how to upgrade maintain and customize yours if there is something you want to know about the ar 15 you will find it here. The gun digest book of the ar 15 volume iii gun digest book of the ar 15 3 kindle edition by sweeney patrick download it once and read it on your kindle device pc phones or tablets use features like bookmarks note taking and highlighting while reading the gun digest book of the ar 15 volume iii gun digest book of the ar 15 3. Now in gun digest book of the ar 15 volume 3 sweeney unlocks the mysteries behind the piston ar ar piston designs ar 15 conversions from direct impingement to piston operation new ar manufacturers hk sun devil cmmg among others ar 15 mags and other accessories from factory stock rifles to do it yourself conversions if theres anything you want to know about the latest generation . The gun digestr book of the ar 15 volume 3 by patrick sweeney provides complete and detailed information about every facet of the piston ar explore the piston system different calibers and aiming options start with the significance of the piston system in the ar and learn about different piston designs. Whether youre buying your first ar or building one from the ground up theres no better reference than sweeneys ar series from gun digestr books and now with gun digestr book of the ar 15 volume 3 you too will be an expert on the most popular rifle in america read more see product details for kindle 1499 paperback 3492 kindle 1499 2613 price was 2613 current price is