- SUROS Rapid-Fire — Full Auto. Deeper ammo reserves. Slightly faster reload when magazine is empty.
- Precision Frame - Fires a single-slug round. This weapon's recoil pattern is more predictably vertical.
Standard Naming Convention: [Music-related Word]-[Two-digit Number]
Standard SUROS weaponry usually possesses a white-and-red default appearance as well as descriptions in which SUROS addresses the weapon's wielder while referring to itself in the third person (e.g. 'SUROS invites you to do it again" for Refrain-23).