These are Year One values. Suros Regime has been completely overhauled in Year Two.
Excerpt from "'Should I Buy It?' – SUROS Regime & Other Exotics"
SUROS Regime has an interesting story. One of Destiny's original "overpowered" weapons, its sale from Xûr in Week 3 gave it two-week reign of terror in PVP before Auto Rifles were nerfed. Since then, Auto Rifles as a whole (and SUROS specifically) have never fully recovered. Even though SUROS isn't what it once was, let's talk about where it is right now.
Among all Exotic & Legendary Auto Rifles, SUROS Regime still has the second highest Stability in-class (68). It retains a very solid Range (40), only passed by
Is it an absolute powerhouse? Not like it once was, but it's still a worthy Auto Rifle. To push its Stability advantage, you can equip Smart Drift Control and compensate the lowered Range with Hammer Forged. SUROS Regime's greatest strength is that doesn't have any true weakness. And if you're a fan of weapon aesthetics, the bright white shell and distinctive plink-plink-plink fire is icing on the cake.
Nothing quite matches the balanced strength of SUROS Regime.
Its closest matches aren't sold by Vendors anymore: Grim Citizen III. Best you can get is the Vanquisher VIII sold by New Monarchy, which does has Glass Half Full and Fitted Stock to help you match SUROS.