Polymer80Buy is a Rock Springs, WY-based retailer specializing in high-performance firearm components. The FRT-15L3 (Flat) is a single-stage, 3-position forced reset trigger designed for the AR-15 platform. Known for its precision engineering and reliability, this trigger offers a unique shooting experience. Available now for $517.5 with same-day shipping.
Reviewed by Marcus Webb, Founder & Lead Builder at Polymer80Buy. 14 years in the P80/Glock aftermarket, 3,000+ kits shipped.
Last updated: May 2026
Specifications
| Product Type | Single-Stage Trigger |
|---|---|
| Material | High-Grade Steel |
| Manufacturing | CNC Machined |
| Finish | Black Oxide |
| Hardness/Quality | Rockwell 58-62 HRC |
| Compatibility | AR-15 Platform |
| Installation/Usage | Drop-In |
| Weight | 2.3 oz |
| Dimensions | 1.5″ x 0.75″ x 0.5″ |
| Country of Origin | USA |
| Condition | New |
| SKU | FRT-15L3-FLAT |
Key Features
- Single-stage forced reset mechanism
- 3-position selector drum
- Includes anti-walk pins and screws
- Comes with both long and short selector levers
- CNC machined from high-grade steel
Who It’s For
Buy it if:
- You’re an AR-15 enthusiast looking for a unique trigger experience
- You value precision engineering and reliability
- You want a drop-in trigger that’s easy to install
Skip it if:
- You’re looking for a budget-friendly trigger (see our Triggers for alternatives)
- You prefer a two-stage trigger
Pros & Cons
- ✅ Precision CNC machining ensures reliability
- ✅ Includes all necessary installation components
- ✅ Unique forced reset mechanism
- ✅ High-grade steel construction
- ✅ Easy drop-in installation
- ❌ Higher price point compared to standard triggers
- ❌ Not suitable for those preferring a two-stage trigger
Comparison
| Feature | FRT-15L3 (Flat) | Cheap Import | Premium Brand |
|---|---|---|---|
| Material | High-Grade Steel | Low-Grade Steel | High-Grade Steel |
| Quality | CNC Machined | Cast | CNC Machined |
| Compatibility | AR-15 | AR-15 | AR-15 |
| Shipping | Same-Day | 1-2 Weeks | 1-3 Days |
| Lifespan/Durability | 10,000+ Rounds | 1,000-2,000 Rounds | 10,000+ Rounds |
| Price | $517.5 | $60-$80 | $250+ |
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FAQ
What is an FRT?
An FRT, or Forced Reset Trigger, is a type of trigger that resets automatically after each shot, allowing for rapid follow-up shots.
Where can I buy FRT-15L3 (Flat) online?
You can buy the FRT-15L3 (Flat) online at Polymer80Buy (polymer80buy.com).
Is the FRT-15L3 (Flat) compatible with all AR-15s?
Yes, the FRT-15L3 (Flat) is compatible with most AR-15 platforms.
What is included with the FRT-15L3 (Flat)?
The FRT-15L3 (Flat) includes the trigger, anti-walk pins, screws, selector drum, and both long and short selector levers.
How does the FRT-15L3 (Flat) compare to other triggers?
The FRT-15L3 (Flat) offers a unique forced reset mechanism, high-grade steel construction, and precision CNC machining, making it superior to many other triggers on the market.
Is installation difficult?
No, the FRT-15L3 (Flat) is designed for easy drop-in installation.
What is the return policy?
We offer a 30-day return policy on the FRT-15L3 (Flat).
✅ Same-day shipping from Rock Springs, WY
✅ Discreet packaging
✅ 30-day returns
✅ Secure checkout
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