The M41 Extended Light Anti-Aircraft Gun, abbreviated M41 ELAAGat, is a weapon carried on UNSC Booster Frames. The weapon is a variant of the M41 Light Anti-Aircraft Gun designed to operate in a vacuum. It fires gas-jacketed, armor-piercing depleted uranium shells with pressurized atmospheric contents to ensure an explosive percussion in a vacuum or other challenging environments.
The weapon is mounted in the rear of the Booster Frame, where it can be operated by another soldier. When it is not being used it is kept in a hatch within the booster frame.