Badass Lego Guns: Building Instructions for Five Working Guns by Martin Hudepohl (2010, Paperback)

LEGO Guns is packed with building instructions for five impressive looking "weapons" built entirely from LEGO TECHNIC parts. In this heavily illustrated 2-color book, you learn how to use LEGO TECHNIC pieces to build working model guns like the Warbeast, a sophisticated, fully-automatic submachine gun; Parabella, a semi-automatic pistol; Thriller, a slide action crossbow pistol with smooth cocking and chambering mechanisms; and the Magic Moth, a simple butterfly "knife" built with TECHNIC pieces. With the help of a bit of sanding, some rubber bands, and Krazy Glue, each gun actually shoots LEGO bricks at high speed, with surprising accuracy. The building instructions for each model are easy to follow and include detailed parts lists. LEGO Guns also includes sections discussing the general concepts of LEGO gun design and offers practical building tips and tricks. The models range from sophisticated to easy, and readers of all ages will find something enjoyable to build and play with.