The SpecterDR is a switchable 1-4x (or 1.5-6x) dual-field-of-view combat optic with clip-on night vision capabilities. It is manufactured by ELCAN Optical Technologies. Two variants of the same optic exist. The SU/230 is designed for weapons that fire the 5.56x45mm NATO cartridge, such as the M16, M4, M27, Mk18 and M249. The SU/230A is an optic that has been zeroed for weapons that fire the heavier 7.62x51mm NATO cartridge such as the M14, Mk17 and M240.
The 1-4x variant was selected by United States Special Operations Command (USSOCOM or SOCOM) for the SOPMOD Block II kit under designation SU-230/PVS.
"A 4x magnification scope for medium range engagements that can switch to secondary 1x iron sights."
— In-game description
The 4x-1x SU230 is a optical sight featured in Insurgency: Sandstorm.