Top Gun

The following guns were used in the film Top Gun:

Top Gun (1986)

GE M134 Minigun

The enemy planes, designated as the "MiG-28", are seen firing the GE M134 Minigun on the F-14 Tomcats in the final dogfight. Whenever the guns are selected as opposed to the missiles in the film, close ups are seen of GE M134 Miniguns used for the insert shot as a stand in for a 23mm GSh-6-23M or a 30mm GSh-6-30.

GE M134 Minigun in 7.62x51mm NATO

A fake MiG 28 firing its guns at "Iceman's" plane.

Close up of a Gatling gun firing from a MiG 28.

Close up of another MiG's Gatling Gun.

Trivia

In reality, the F-14 Tomcats would be using M61 Vulcan 20mm cannons, and even though both jets are seen using the same guns, the Russian MiG 28 would not be using the same guns. In reality, the MiG 28 does not exist; Mikoyan Gurevich has only used odd numbers for their aircraft (MiG 25, 29, 31, and so on).

The M61 Vulcan cannons on the F-14 are internal, you shouldn't be seeing them fire other than a muzzle flash from the cannon port on the left side of the fuselage far below the cockpit.