Just standing there, shooting straight at the enemy hasn't worked since the Revolutionary War (or at least the last Die Hard). Cover is king when it comes to gun fights, and these 12 periscope rifles from our friends at Oobject let you shoot without giving your opponent anything to shoot at.
When you're done "rifling" through these images, check out these 14 camera guns, some non-gun guns, and 12 guns concealed in the craziest places.
Note the chain of triggers.
Allows shooting over a trench.
Note how here the stock itself is hinged making the gun fold out into a periscope.