M023 Shotgun

The is a UNSC rifle attachment, designed to increase the effectiveness of UNSC infantry weapons at close ranges by simply attaching a small, yet powerful shotgun to the underside of weapons like the MA6 Assault rifle.
==Description==
The M023 Shotgun was the first in a series of three UNSC rifle attachments, given to UNSC riflemen. Unlike the grenade and rocket launcher systems in the weapon attachment series, the M023 is geared towards close range combat. Attached to the bottom of a rifle's barrel on the accesory rail, it uses the same ammo as the M90, storing three shotgun shells in on board tube. After firing a shell, the bolt action on the side of the weapon is cocked, ejecting the spent shell casing and chambering a fresh round. The M023 has its own integrated trigger assembly and safety. 
The M023 is often issued to soldier fighting in urban areas, since its shotgun blasts make it useful for clearing rooms and hallways. 
==UNSC Remarks==
"Stick one on a BR and you're practically invincible, shoot them with the BR until they get close, and the blow 'em away with the M023."
"The three-round mag means you run out of ammo in a hurry, but it's still enough to get yourself out of trouble."