Sniper Rifle Barrel - A smoother bore allows for increased ranged damage.
Sniper Rifle Extended Barrel - Lengthens barrel, creating greater bullet velocity and impact.
Sniper Rifle Concentration Mod - Slows time briefly when zooming in.
Sniper Rifle Enhanced Scope - Increases accuracy, and helps aim through smoke. Less camera shake when taking damage.
Sniper Rifle Spare Thermal Clip - Adds sockets to increase thermal clip capacity, increasing number of spare shots.