Glock 17
From Tardis Wiki, the free Doctor Who reference
A Glock 17 was a type of pistol.
Torchwood Three had at least one Glock 17 in their armoury. Gwen Cooper kept a Glock in her waistband. She drew it when facing Weevils. She later drew her Glock again when searching the flat of Lucy Sobel. (PROSE: Slow Decay)