Got lucky and randomly received them a couple of weeks ago from a legendary engram that dropped off of a Moon dreg, I've been using them ever since. So badass looking, just wish the bonus ability had to do with more tripwire grenade damage as opposed to duration. I've noticed many enemies will stop and "wait" behind an active grenade sitting there if they see you throw it ahead of them or if you don't throw it directly onto one of them (my usual tactic because of this), making the bonus largely useless to me unless your plan all along was to cause them to stop for a clear headshot. Still I love these guantlets, the special weapon reload boost is nice too.

If only when you fully upgrade the spine fire (or whatever comes out of the skull on bad juju) should apply to the gauntlets. And the color of the flames change with the shader. Then again since it's for the hunter when you use active camo the flames are still visible. [spoiler]Using active camo itself is still pretty visble.[/spoiler]

I've been waiting for that to fall in my lap. Definitely one of the coolest armor pieces in the game.