S71 Rifle

"With the S71, Gemini designed an ergonomic assault rifle ideal for mid-range engagements. Chambered with a smaller caliber round than other weapons in its class, the S71 has become popular among private military professionals for its sleek aesthetics and precise accuracy."

- In-game description

In Alpha 3.5.1 it can be purchased from GrimHEX for 3981 UEC.