SRS99-S5 AM sniper rifle
The Sniper Rifle System 99-Series 5 Anti-Matériel (SRS99-S5 AM) is a gas-operated anti-materiél sniper rifle used by the United Nations Space Command.  The S5 model is designed and manufactured by Misriah Armory.
The SRS99-S5 AM is a semi-automatic, gas-operated sniper rifle that fires 14.5×114mm M232 APFSDS rounds from a 4-round magazine. It is, alongside its primary Covenant counterpart, the Type-27 Special Application Sniper Rifle, the most accurate and arguably the most powerful small-arms weapon in either arsenal.
It is a successor to the S2 variants used throughout the Human-Covenant War by the UNSC Navy and Marine Corps. The S5 model incorporates many features seen on the older SRS99 rifle used in large numbers by the Army. The SRS99-S5 AM is intended for use by augmented personnel of the UNSC Defense Force. The sniper features a very strong carrying handle, standard weapon attachment rails, and a heavily ruggedized frame.
The SRS99 series is designed to be used at medium to long ranges and is equipped with an electronic scope for precisely this purpose. It is tremendously useful in its designated role, considering its extraordinary range, which surpasses any other weapon of comparable size, and its incredible stopping power even against body armor and Covenant shielding system.
In multiplayer, the SRS99-S5 can be highly effective at close range in the hands of a skilled operator, as the highly damaging round is just as powerful at close range; a single round followed by a melee strike will kill a hostile almost instantly.
The rifle's projectile has a slight travel time at great distances, and requires practice to use effectively at range. When used in close quarters, its precision nature, slow reload time, small magazine capacity, heavy recoil, and slow rate-of-fire leave precious little room for error. A small combat load and the relative scarcity of ammunition available for the weapon also make it bad practice to expend ammunition on smaller, less threatening combatants, such as Grunts. Rounds fired by the SRS99-S5 leave a trail that could be traced back to the sniper's location.
Halo: Spartan Assault and Halo: Spartan Strike
Changes from Sniper Rifle System 99 Anti-Matériel in Halo: Reach
Changes from Halo 4 to Halo 5: Guardians
Halo 5: Guardians REQ cards
List of appearances