Scale of Soirapt Lunge?

I know it’s a 1 hit kill, but is the lunge extended on this weapon? Like say the Energy Bayonet lunge is extended melee. I’ve called this in twice and died pretty quick, the last time to an Smg, which was my fault I guess. Till then, I’ll just call it Scale of Sourapt, because I have had unfornate luck with it so far.

If it does have lunge like a Bayonet, then I’m using it wrong.