The PK-AS/ASV is an advanced reflex sight manufactured by BelOMO (Belarusian Optical & Mechanical Association). It is a unique advanced scope as it is powered, but if the battery dies, the red dot becomes a black dot, allowing the wielder to still know where they are aiming if their sight loses power.
"A 1.5x magnification scope for short range engagements."
— In-game description
The 1.5x PK-AS is a reflex sight featured in Insurgency: Sandstorm.