The protracted trench warfare on the Western Front of World War I forced experimentation in ways to aim and shoot a rifle without exposing any part of the body to enemy fire. A number of versions of these trench rifles were made, none of which, however, had much success.
U.S. RIFLE MODEL 1903 SPAR4040
TELESCOPE SIGHT SPAR7482
U.S. RIFLE MODEL 1903 SPAR1139
PERISCOPE SIGHT SPAR8214
Last updated: February 26, 2015