M99A2S3 Stanchion

The M99A2S3 Special Application Scoped Rifle, also referred to as the M99A2S3 Stanchion is a variant of the M99 Stanchion created on the by Isabel.

Design details
It has an inertia buffer that helps manage recoil. It also has a bipod that can be folded back and secured on the weapon.

It is compatible with an "ATLAS HISHOT PRO-X" smart-link optics.

Ammunition
The weapon has a feed of 7 rounds. These rounds are penetrator darts that are covered in a Sabot, and Storage casing which is "full burn-up".

Development history
The M99A2S3 was developed on the UNSC Spirit of Spire in its manufacturing block "23-CELL 14". It is based on a template by Isabel called "Isabel-2558-01-00023".

Usage
During the Second Ark Conflict, the M99A2S3 Stanchion was used by Lance Corporal Sparks of Sunray 1-1, and had achieved at least 17 kills with it. Sparks also customized his weapon with tally marks for every kill, a Dazzle camo pattern, and two charms; a Scorpio charm and an ODST Talisman.

List of appearances

 * Halo Wars 2