Overview of the Radian Vertex-FB Trigger-Flat Bow for AR-15/AR-10 | ACC-0017
What it is
The Radian Weapons Vertex-FB Trigger is a single-stage, flat-bow, drop-in trigger for AR rifles. It fits AR-15 and AR-10 platforms and carries MPN ACC-0017 and UPC 817093027414. The forward-set bow positions your finger for a straight rearward press that helps curb low-left or low-right shots.
Why it helps
You get a clean 3.5 to 4 pound break with a short, positive reset. There is no spongy take-up, which makes calling shots easier and follow-ups faster for duty, competition, or hunting.
How it is built
The bow uses 1144 carbon steel. The hammer is precision-machined S7 shock-resistant tool steel with wire-EDM finished interfaces. Components are captured in a lightweight aircraft-grade aluminum housing with a black hardcoat finish. The design resists pin walkout while using standard mil-spec pins. From the product image, you can confirm the flat shoe, black cassette, and Radian logo.
Who uses it
Law enforcement, competitive shooters, hunters, and home builders choose the Vertex-FB for predictable control. It is the same smooth, crisp trigger used in the popular Radian Model 1 rifle family.
Key Features
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Family: Radian Weapons.
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Model: Vertex Trigger, flat bow.
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Type: Single-stage, drop-in cassette.
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Color: Black housing and bow.
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Pull Weight: 3.5 to 4 lb.
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Materials: 1144 carbon steel bow; S7 tool steel hammer with wire-EDM finished interfaces.
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Housing: Aircraft-grade aluminum, black hardcoat anodized.
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Reset: Short, tactile reset with very low overtravel.
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Pins: Uses standard small 0.154 inch pins and resists pin walkout.
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Use Cases: Target and precision shooting, competition, hunting.
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Reference: Same profile used in Radian Model 1 rifles.
Compatibility
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Platforms: AR-15 and AR-10 pattern lowers using mil-spec small pins 0.154 inch.
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Frame: AR rifles, semi-automatic.
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Exclusions: Not for Colt large-pin 0.170 inch lowers. Not for select-fire receivers.
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System Note: Works with typical gas-operated ARs. Blowback PCC use may vary by setup.
Intended Users
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Law Enforcement and Security: Officers who want a consistent, duty-ready trigger press with fast reset.
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Precision and Competition Shooters: Users who need a crisp break for tight groups and quick splits.
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Hunters: Shooters seeking a reliable, clean pull in a rugged package.
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Armorers and Builders: Upgraders replacing gritty mil-spec triggers without hand-fitting.
What’s Included
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1 Radian Vertex-FB Single-Stage Drop-In Trigger Module, Flat Bow, Black (ACC-0017, UPC 817093027414).
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Basic installation guidance from Radian (assumed).
Required but not included: Standard 0.154 inch trigger and hammer pins if your lower does not already have them. Follow any manufacturer's thread locker guidance.
Frequently Asked Questions about Vertex-FB Trigger
Question 1
Will this fit my mil-spec AR-15 lower?
Answer: Yes. ACC-0017 fits small-pin 0.154 inch AR-15 lowers and AR-10 pattern lowers.
Question 2
What pull weight should I expect?
Answer: About 3.5 to 4 pounds with a crisp single-stage break.
Question 3
What does the forward flat bow do?
Answer: It places your finger slightly forward to encourage a straight-back press, which can reduce left-down or right-down impacts.
Question 4
Is tuning required?
Answer: No. It is a self-contained cassette that installs easily and needs no fine-tuning.
Question 5
Will it work in Colt large-pin receivers or select-fire lowers?
Answer: No. It is for semi-auto small-pin receivers only.
Why Buy from WCUniforms
WCUniforms is owned by a former law enforcement officer and EMT, and USMC and USCG military veterans. We have used the products we sell in the field. Most orders ship the same day, with a goal of within 48 business hours for in-stock items. Hassle-free 30-day returns apply to most items. You receive SMS and email tracking updates for every order. Get real human instant chat during business hours and phone support at 855-452-4440.
MPN: ACC-0017
UPC: 817093027414
