M20 SMG

The M20/Personal Defense Weapon is the post-Covenant war successor to the M7 SMG.

The M20 SMG is issued to vehicle crews, security personnel, and Spartans who expect close-quarters combat.

Design details
The M20 SMG is visually very similar to its M7 counterpart, though it's significantly more powerful. Like before, the weapon fires pistol-caliber cartridges from a 60-round magazine at a rate of 900 rounds per minute. The M20 is most notably different in its functional design, opting away from the former's caseless cartridges and side-mounted magazine in favor of traditional cased cartridges and a top-mounted magazine. It is normally fielded with a CQB sight.

Projection SMG
SMG with Projection Sight. SWAT configuration used by UNSC military police and UEG security forces.

Recon SMG
SMG with Recon Sight. Personal defense weapon configuration issued to UNSC pilots.

Attachments

 * Long Barrel: Increases effective range.
 * Laser Targeter: Increases weapon accuracy.
 * Silencer: Reduces visibility on enemy Motion Trackers when firing.
 * Stabilization Jets: Helps control recoil.
 * Kinetic Bolts: Augments knockback and damage against vehicles.
 * Energy Bayonet: Increases melee damage and range.

Changes from M7 SMG in Halo 2: Anniversary

 * Can now be zoomed in using the Smart Scope and have its bloom reduced at the cost of added recoil.
 * Headshots now deal bonus damage on unshielded targets.
 * Increased damage, killing in 13-15 rounds, depending on the headshot bonus.
 * Maximum ammo doubled, from 180 to 360.

List of appearances

 * Halo 5: Guardians