Radian Vertex Trigger - AR-15 Single-Stage - Flat Bow

The Radian Vertex Flat is a single-stage drop-in trigger for AR-15 and M4 rifles, fitting lower receivers with standard Mil-Spec trigger pins.

A single-stage trigger from the company that machines some of the AR world's finest controls — the Vertex, flat bow edition.

The Radian Vertex (ACC-0017) is a single-stage match trigger with a 3.5–4 lb (1.6–1.8 kg) pull built to Radian Weapons' obsessive machining standards — the same standards behind the Raptor charging handle. The break is clean and consistent with minimal take-up and a short, positive reset, and the flat trigger shoe adds leverage while indexing your finger identically on every press.

Radian Weapons' tolerances mean the Vertex feels hand-fitted out of the box and stays that way: no grit developing, no pull-weight drift, no surprises. For duty-capable precision in a single-stage, it belongs on the very short list.

Why shooters choose the Vertex Flat

• 3.5–4 lb (1.6–1.8 kg) single-stage break — light enough for precision, sensible for general use
• Flat trigger shoe — consistent finger placement and leverage
• Minimal take-up, short reset — fast, controlled strings
• Radian machining standards — hand-fitted feel, lasting consistency

What the Vertex Flat fits

Drops into AR-15/M4-pattern lower receivers using standard Mil-Spec trigger pins, with no extra hardware required if your existing pins are serviceable. Large-pin receivers will not take it, so confirm your pin size before ordering — if the lower is an unusual make, contact us with the details and we will check. Fitting is an armourer-level job: complete full function and safety checks before live fire.

Specifications

Radian precision, at the trigger. Order the Vertex Flat today — in stock at Xtreme Tactical Gun Parts with free tracked UK delivery in 7–10 days.

Explore more: all Rifle Triggers, AR-15 Parts & Accessories or browse all Radian Weapons.