Radian Vertex FBX Trigger

The Radian Vertex FBX is the flat bow variant of Radian's next-generation single-stage AR-15 trigger, sharing identical internals with the CBX but offering a flat trigger shoe preferred by competition and precision shooters. The FBX uses TriggerTech's Zero Creep Technology with a roller-based Frictionless Release (TKR) system that replaces traditional sliding sear engagement with rolling contact. This produces a clean, creep-free break with extremely short overtravel and a short, tactile reset.

The flat bow provides a consistent contact surface regardless of where the finger contacts the trigger shoe. Shooters who index with the distal joint of the trigger finger, or who stage the trigger during precision shots, often prefer flat bows for the more predictable feel across the vertical travel of the shoe. The forward-positioned bow design carries over from the original Vertex line, promoting a straight-back press that minimizes lateral pull. The angular position of the bow creates a natural index point for repeatable finger placement.

Internal components are hardened 440C stainless steel with FLTWR (Flat Wire) spring technology. The stainless construction resists corrosion without relying on surface treatments, maintaining consistent pull characteristics in humid storage, suppressed shooting, or other environments where moisture exposure is elevated. The self-contained cassette drops into any mil-spec AR-15 lower using standard 0.154" pins, with a built-in anti-walkout feature that eliminates the need for KNS or anti-rotation pins.