The AR-15 Made Simple
AR-15 Rifle Builder's Manual: An Illustrated, Step-by-Step Guide to Assembling the AR-15 Rifle
How to Estimate Range and Wind
Precision Long Range Shooting And Hunting: Vol. 2: Fundamentals, ballistics and reading the wind
Precision Long Range Shooting And Hunting: Vol. 1: Getting started, caliber and equipment choices
US Army Sniper Training Manual
Gunsmithing - The AR-15 Volume 2
THE AR-15 RIFLE: MAGPUL MOE; UPGRADING THE PLAIN JANE AR-15 WITHOUT BREAKING THE BANK
The Ultimate Shooting Skills Manual: 212 Essential Range and Field Skills (Outdoor Life)
Gunsmithing - The AR-15