MJOLNIR/GUNGNIR Systems Development Platform

The Armor Systems Testbed (AST) was a development program led by projects MJOLNIR and GUNGNIR, intended to aid in experimentation with various prototype technologies.
Each testbed was a form-fitting suit of polymer body armor, capable of deflecting small caliber bullets. Powered by an integrated rechargeable battery and was equipped with cooling and heating units to mask it’s infrared signature and create a comfortable environment. The helmet offered encrypted communications and a VISR heads-up display, along with thermal imaging sensors and motion detectors. The suit is fully sealed and gas tight, allowing usage in vacuum for up to fifteen minutes when equipped with standardized oxygen tanks. 
The AST later spawned several cross-branch technologies, including the BA-53635/PLMD Rechargeable Battery used in the M6 “Spartan Laser”, the standardized CH252 family of combat helmets—including the ODST Class-II helmet whose architecture was directly sourced from the AST—several modular armor components like GUNGNIR kneepads and shoulder pauldrons, ODST chest plates and shoulder pauldrons, and the proprietary Visual Intelligence System, Reconnaissance (VISR) suite.