Boys and Their Maxim Toys Sons of Guns : Season 2 Episode 13

TV-14 (self-applied) Discovery 1h 00m int(0)

Aired: December 21st, 2011 @ 12:00 AM EST on Discovery

Will and the RJ crew restore a WWI Maxim machine gun, mount it to a plane engine and create an interrupter system allowing the gun to fire cleanly between moving propeller blades. Also, Vince and Steph team up to modify a Glock with special charging handles to help a customer with multiple sclerosis safely fire again.