The Radian Vertex CBX is a curved-bow single-stage drop-in trigger for AR-15 rifles, fitting any Mil-Spec lower with standard .154 in trigger pins.
Radian's current-generation Vertex, curved-bow — a precision-machined single-stage drop-in with a crisp, consistent break.
The Radian Vertex CBX is the curved-bow (CBX) version of Radian Weapons' current Vertex single-stage trigger. Fully self-contained as a drop-in cassette, it delivers a clean take-up, a crisp wall and a consistent break shot to shot, with a fast, positive reset. The curved bow suits shooters who prefer the traditional trigger-shoe profile.
How It Compares
Compare with the Radian Vertex FBX Single-Stage Trigger for AR-15.
Key Features
- Precision single-stage break — crisp and consistent
- Self-contained drop-in cassette — fast, clean install
- Curved bow — traditional trigger-shoe feel
- Fast positive reset — control at speed
Compatibility & Fitment
Drops into any Mil-Spec AR-15 lower receiver with standard .154 in trigger pins. Because the unit is a self-contained cassette there are no separate springs to fit, and pins are supplied. Large-pin receivers will not take it, so confirm your pin size before ordering. Complete a full function and safety check before live fire. If you would rather have a flat shoe, the Vertex FBX is the same trigger with a flat bow.
What's Included
- Radian Vertex CBX drop-in trigger cassette with pins
Technical Specifications
Platform | AR-15 |
Fits | Mil-Spec AR-15 lower, standard .154 in trigger pins |
Type | Single-stage drop-in trigger, curved bow (CBX) |
Finish | Black |
Made in | USA |
Brand | Radian Weapons |
US Shipping & Support
Shipped from D&R Sports Center in the USA with fast, tracked delivery. Questions on fit, mounting or which model suits your setup? Our team is glad to help before and after your purchase.
Frequently Asked Questions
Will the Vertex CBX fit my lower?
It drops into any Mil-Spec AR-15 lower receiver with standard .154 in trigger pins. Large-pin receivers will not take it, so confirm your pin size before ordering — if you cannot tell from the paperwork, measure the pin holes or ask us with the make and model. The unit arrives as a self-contained cassette with pins supplied.
What does a drop-in cassette trigger actually change?
Everything that makes the trigger work sits in one self-contained housing rather than going into the receiver as loose parts. That means the geometry is set before it reaches you instead of depending on how your particular lower is machined, which is what gives the crisp wall and consistent break from one rifle to the next. It also means there are no separate springs to fit.
Should I take the curved bow or the flat?
Mechanically the CBX and the flat-bow FBX are the same trigger; the difference is the shape of the shoe your finger sits on. The curved bow feels familiar if you have come off a standard Mil-Spec trigger and naturally centers the finger, while a flat shoe keeps the leverage identical wherever you press.
Is installation straightforward?
The install is quick because the cassette goes in as one piece and the pins are supplied, but this is armorer-level work on the fire-control group rather than a bolt-on accessory. If you have not done it before, have a gunsmith install it. Either way, complete a full function and safety check before live fire.
