Homemade Team Fortress 2 turret gun

Prop builder Zander Brandt has built a ‘Force-A-Nature’, one of the weapons available to Team Fortress 2’s Scout. I think you’ll agree that it’s quite fetching and mimics the ‘real’ version admirably. 
The shotgun and attire are neat, too. 
Note to Zander: please build me a Shadows of the Damned’s ‘Boner’ gun.
Source: Zander Brandt