Colors

The weapons used in this movie are:

MAC-10

Info needed

Ingram MAC 10 open bolt submachine gun - .45 ACP

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Taurus PT92

A Taurus PT92 pistol is carried by Hodges (Robert Duvall) as his personal weapon.

It's a Taurus PT92 in that particular scene (you can tell because it has the safety mounted on the frame, not on the slide), but I believe he uses a Beretta for the rest of the movie.

File:Colorsberetta92F.jpg

Robert Duvall with his Beretta 92 FS in "Colors"

Taurus PT92AF (blued) 9mm

Taurus PT92 (stainless) 9mm

Smith and Wesson model 14

Officer McGavin (Sean Penn) uses a 6" barrel S&W 14 as his on-duty service handgun

Smith and Wesson model 14 in the movie "Colors"

Smith & Wesson Model 14 - .38 spl

Smith and Wesson model 64

Officer McGavin (Sean Penn) also carries a 3" barrel S&W 64 as a plainclothes/off duty handgun

File:ColorsSW64.jpg

S&W 64 in the movie "colors"

Smith & Wesson Model 10 w/3" barrel. The blued steel counterpart to the Model 64.

Smith & Wesson Model 36 / 38

Finally, Sean Penn carries a 3rd revolver: a S&W 36, as a backup gun, in an ankle holster (barely visible in one scene, during the fight in the Restaurant).

Smith and Wesson Model 36 - .38 special - 5 shot

Ithaca 37

The shotgun that Sean Penn (McGavin) removes from the vehicle during a confrontation with a gang to find out who threw a rock at their squad car, However his Partner Robert Duvall (Hodges) tells him to put it back in the car.

It is the 8 shot Ithaca 37 LAPD version with rifled sights.

Ithaca Model 37 riot version - 12 gauge

Ruger Mini-14

Used by one of the gangsters at the end to shoot Robert Duvall's character.

Blued Ruger Mini-14 Standard Model Semiautomatic Rifle (Pre-2005) with 30 round magazine - 5.56mm

IMI Micro Uzi

Used throughout the movie by Crips and 21st Street gang members. One is used to kill the Crip leader Rocket (Don Cheadle).

Micro Uzi with Folding Stock - 9mm