The R114 was an assault rifle developed in 2089 by PDI. It is a bull pup derivative of the R91 assault rifle that had been used by the United States Armed Forces before the Great War.
After the Great War, PDI needed a solution to a problem with all long rifles: in confined spaces such as the shelter, a long rifle was hard to maneuver. As such, a practical but long-overlooked solution to the problem -- a bullpup version of the rifle, was devised by some of the military scientists who had been admitted into the shelter during the Great War.
A heavily specialized variant of the R114 rifle came about for use by the Eyes of Providence. It was a more accurate, semi-automatic only R114, with an integrated suppressor.