Blue Book of AR-15's & Variations 2nd Edition by Zachary R. Fjestad and Lisa Beuning

The 2nd Edition Blue Book of AR-15s& Variations is the most up-to-date and complete reference book ever published on AR- 10/AR-15 carbines, pistols, rifles, and shotguns. Includes nearly 400 AR-15 manufacturers/trademarks with all the current and discontinued makes/models with up-to-date values taking into consideration the most recent AR-15 marketplace fluctuations.