Griever

[JunseiKei]

Gaius render with Heirsbane, to show what I mean. You can see that Thancred's has a barrel on the same side in the teaser.

Oh, you mean because the gun part is lacking on the other side of Gaius' weapon, as seen here? To be fair, we don't really get a look at the other side of Thancred's weapon. He goes to unsheath it, but doesn't pull it out before the scene changes.