Gas (with a shotgun in hand) reveals that he is going to kill Allegra for the bounty on her head, but Pikul shoots him from behind with the rivet gun used to install the port.
He is going to kill Allegra for the bounty on her head. This is what Gas (with a shotgun in hand) reveals. Pikul shoots him from behind with the rivet gun. This rivet gun is used to install the port.