Looper is a 2012 action/science-fiction film directed by Rian Johnson (The Brothers Bloom). Joseph Gordon-Levitt stars as Joe, a hitman who is known in the year 2044 as a "Looper", a specialist in killing people sent via time machine from 2074. Joe's world begins to fall apart when he recognizes one of his victims as his older self (Bruce Willis) and allows him to escape.
The following weapons were used in the film Looper:
The main weapon used by Loopers in the film is a futuristic shotgun dubbed the "Blunderbuss". The pump action firearm is fitted with a futuristic barrel sheath. It bears a close resemblance to the 18th Century firearm it takes its name from. The weapon is mentioned by Kid Blue to be short-ranged, capable only of hitting targets 15 paces away, but unlike a real Blunderbuss, it is capable of firing multiple rounds.
Remington 870 Field Gun
Sara (Emily Blunt) uses a Remington 870 Field Gun to protect her farm from intruders. She specifically mentions that the shotgun is a Remington 870, to which Joe replies that it's not the gun he's not afraid of.
Mossberg 590 Cruiser
When a thief tries to steal a suitcase, a man draws and fires what appears to be a pistol gripped Mossberg 590.
A nickel-plated and wooden gripped version of the BFR is carried by Kid Blue (Noah Segan). Prop Master James Kroning mentions in an IGN video that the rear sight was removed to provide better balance when spinning the pistol and to facilitate fanning of the revolver.
Joe (Joseph Gordon-Levitt) makes an escape from his loft while firing a Mateba Model 6 Unica with a short barrel. He is also seen using the Model 6 while working as a hitman in Shanghai.
Old Joe uses what appears to be an MP-9 during a drive by in Shanghai.
Heckler & Koch MP5A5
Old Joe is seen holding a Heckler & Koch MP5A5 with a KAC forend when he confronts Abe. This may be a continuity error, as he is never seen carrying the MP5 as he is going through the building with his twin P90s, and he is shown reloading before he confronts Abe.
Other
CIS SAR 21
In the nightclub gun locker, a CIS SAR 21 can be seen hanging on a wall behind Joe.
Nightclub Gun Locker
In the nightclub that Joe frequents is seen a gun locker where patrons must check their weapons.