Content Published August 10, 2015 Glock 17 A third generation Glock 17 pistol with a mounted tactical light, being demonstrated to a group of children by Thames Valley Police. © Danny Callcut 17 adult boy child demo demonstrate demonstrating demonstration display exterior firearm firearms glock guns hand hand gun hand-gun handgun held hold holding holds law enforcement male man outdoor outdoors outside people person pistol policing safe safety thames valley police tvp weapon weaponry weapons