Sangheili Point Defense Gauntlet
From Halopedia, the Halo wiki
An Arm Shield is a protective device carried by the Sangheili of the Covenant and later, the Separatists.
This shield was later replaced by the Elite Personal Energy Shield. While the Elite Arm Shield was never seen in game, it was used by Rtas 'Vadum in the Halo Graphic Novel.
There is a rumor that it was swapped for the full body shields the Elites have now. The player may have needed to wear down each of the 3 layers of the shield to get a clear shot and after some time it would regenerate, however this is still just a rumor. It is an obvious fact, however, that the Jackal arm-band shield contributed to the design, or perhaps the other way around.
Trivia
- This item was going to be used in Halo: Combat Evolved by Sangheili soldiers, though was replaced by the Personal Energy Shields.