The manufacturer of this cool as heck set-up is Lage Manufacturing.

This rifle shoots real projectiles and not blanks like the movie gun.

This pulse rifle was ultimately controllable, and very accurate. It literally kept smacking rounds in the same spot at 20 yards. It has a 50 round magazine from a Suomi smg, has a shotgun that has two in the tube and one in the chamber. The rounds count down as you shoot it. It is in 9mm (yes, 9mm and not .45ACP), and not caseless explosive tip ammo like the movie.

With this particular firearm, it is a 9mm design, and it utilizes the Suomi coffin magazines that have a capacity of 50 rounds.