The Pyrotechnic Ogris is a weapon used by Grineer Napalms that fires slow moving incendiary grenades. Although slow moving, the explosion AoE of these payloads is quite large, hitting players from 6 meters or more from the impact region, and is not blocked by any object (it can deal damage through most walls and through Frost's Snow Globe). It has a chance to inflict a burn proc for 6 seconds which will set players on fire dealing large amounts of damage while keeping shields from recharging.
The Pyrotechnic Ogris uses the pre-update 12.6 model of the Torid, which may be a placeholder until a new weapon or weapon model comes out to replace it.
The Tusk Napalm, who was released in Update 22.0 (2017-10-12), is equipped with a updated model of the Pyrotechnic Ogris, similar to the normal Ogris. The Kuva-variant of the Napalm, meanwhile, uses the Tonkor grenade launcher instead.