Sniper Rifle System 99C-S2 Anti-Matériel
The Sniper Rifle System 99C-S2 Anti-Matériel (abbreviated SRS99C-S2 AM), otherwise known as the SRS99C-S2 AM Sniper Rifle is a United Nations Space Command firearm usable in Halo: Combat Evolved and Halo Wars.
The SRS99C is the primary Sniper