Quadruple-barrelled shotgun

The quadruple-barrelled shotgun is Reggie's signature weapon, consisting of two sawed-off shotguns welded together, with an additional grip and a lamp on top. It's possible to fire either four barrels at once, or two at a time.

Phantasm II
As they get into the business of hunting down The Tall Man, Mike and Reggie break into a hardware store to arm themselves. Reggie initially eyes a hunting rifle, but is dissuaded by Mike, who suggests he focus on close range. He then picks up a pair of shotguns, getting the idea to forge a new weapon out of them with a workshop located in the store.

After being constructed, the four-barrelled shotgun becomes Reggie's main weapon. He first attempts to use it to kill the Tall Man in a car chase, but the latter pushes their Cuda over a rock, causing them to crash.

Later, he's able to use it to kill four Lurkers simultaneously. Reggie subsequently throws the gun away.

Phantasm III: Lord of the Dead
After recovering Mike from the crashed hearse, Reggie finds his shotgun lying nearby(suggesting that one of the trio or the Tall Man himself recovered it) and uses it to kill three Lurkers hiding on the trees before being overwhelmed.

When the Tall Man reappears at his house to kidnap Mike, Reggie once again tries to shoot him, but is knocked unconscious by the Tall Man's telekinetic power.

Phantasm IV: Oblivion
As he arms up for a final confrontation with the Tall Man, Reggie picks the four-barrelled shotgun out of his trunk and loads it, later using it to kill several Lurkers skulking around Mike's abandoned hearse.

He also tries once again to protect Mike from the Tall Man by shooting him, but the gun doesn't fire, possibly due to the Tall Man's power.

Phantasm V: Ravager
As Reggie emerges from the desert, the only thing he has left with him is the quadruple-barrelled shotgun. Exploring the desert, Reggie discovers a dilapidated building and collects an abandoned backpack, where he deposits his gun until recovering his old Barracuda.

In the nursery home reality, Reggie berates Mike for offering books to him, and instead wishes he had his shotgun with him. He ultimately reclaims it when the Mike of the post-apocalypse universe throws it through an opening, allowing Reggie to kill several Gravers at once.

Appearances

 * Phantasm II (1988)
 * Phantasm III: Lord Of The Dead (1994)
 * Phantasm IV: Oblivion (1998)
 * Phantasm V: Ravager (2016)