Turret

A turret is a a self-contained weapons platform capable of rotation. There are many different turrets in the Halo universe. In the Halo universe, there are three different types of turrets. there are regular mounted turrets, ones that are mounted on vehicles, and ones that can be mounted or used on the move.

UNSC
M41 Light Anti-Aircraft Gun mounted on Warthogs

M68 Gauss Cannon mounted on Warthogs

AIE-486H Heavy Machinegun from Halo 3

MLA Autocannon

M247 GP Machine Gun

M202 XP Machine Gun

Covenant
Shade

Plasma Cannon

Shielded Plasma Cannon