The MGL is a multiple-shot weapon, intended to significantly increase a small squad's firepower when compared to traditional single-shot grenade launchers like the M203.

It uses the well-proven revolver principle to achieve a high rate of accurate fire which can be rapidly brought to bear on a target.

A variety of rounds such as HE, HEAT, anti-riot baton, irritant, and pyrotechnic can be loaded, then fired as fast as the trigger can be pulled.

Although intended primarily for offensive and defensive use with high-explosive rounds, with appropriate ammunition the launcher is suitable for anti-riot and other security operations.

The MGL grenade launcher consists of a lightweight, progressively rifled steel barrel, sight assembly, frame with firing mechanism, spring-actuated revolving cylinder magazine, and a folding stock.

The grenades are then inserted into the chambers, one-by-one (because the cylinder cannot be removed), the frame closed, and the axis pin re-engaged to lock.

The Y2, amongst other models, is equipped with the Armson Occluded Eye Gunsight (OEG),[3] a collimator sight which provides a single aiming post.

After over 12 years of production, and more than a decade of user feedback from different countries around the world, it became evident that a redesign of some component groups would make the weapon even more user-friendly and reliable while also simplifying maintenance.

Parts, such as the steel barrel, are interchangeable with a minimum of workshop modifications involving a few special tools and cutting dies.

The MAR is largely identical to other MGL models, but is adapted to fire standard 37/38mm less-lethal riot control rounds available today.

[5] The Milkor SuperSix MRGL (Multi-range Grenade Launcher) was developed in 2012 and features a new recoil reduction system, redesigned stock, strengthened construction and new optics.