LEGO my Gun-o

This is pretty entertaining. A 17-year-old LEGO savant named Jack Streat has assembled his first book, "LEGO Heavy Weapons," which includes plans for making full-size replicas of four weapons completely out of LEGO bricks, including the Desert Eagle pistol (see below), a SPAS 12 combat shotgun (see the cover above), a Lee Enfield bolt-action sniper rifle and an AKS-74U assault rifle (check out the overview image here from the book).

                                      

The three larger weapons all shoot bricks, allegedly accurately (though there's no mention of range). The book is either out or nearly so. Below is all the book information you'd need to track it down: 

LEGO^® Heavy Weapons
Publisher: No Starch Press
By Jack Streat
ISBN: 9781593274122, $24.95  
May 2012, 368 pp.
order@oreilly.com
1-800-998-9938
1-707-827-7000

If you're really into this stuff, publisher No Starch Press has another LEGO gun-building book, "Badass LEGO Guns," available here at the online site of its parent company, O'Reilly Media.