FRT 15 Trigger | Rare Breed Trigger - polymer 80
Video review
Expert review
About this product
What is the FRT-15 Trigger? The FRT-15 Trigger is a forced reset trigger mechanism for AR-15 platforms that uses recoil energy to achieve faster reset times than traditional triggers. This Rare Breed Trigger model features a 7075-T6 aluminum housing and black nitride QPQ finish for durability. It includes anti-walk pins and a three-position safety selector for installation flexibility.
What is the FRT-15 Trigger used for?
The FRT-15 is designed for rapid-fire applications where split-second reset times matter. It achieves reset in approximately 0.08 seconds compared to 0.15 seconds for standard mil-spec triggers. This makes it suitable for competitive shooting drills and tactical training scenarios requiring high-volume fire.
How does the FRT-15 compare to a Geissele SSA-E trigger?
The FRT-15 delivers faster reset times but requires more maintenance than the Geissele SSA-E. While the SSA-E offers a cleaner 4.5-pound break weight, the FRT-15's forced reset mechanism can fire approximately 40% faster in controlled testing. The Geissele is better for precision shooting, while the FRT-15 excels at rapid cycling.
What does it weigh and what are the dimensions?
The complete trigger assembly weighs 3.2 ounces with installed pins. Housing dimensions measure 1.8 inches long by 0.9 inches wide by 0.6 inches tall. These measurements make it compatible with standard AR-15 lower receivers like our 80% Lower Fire/Safe Marked.
Who is this NOT for?
This trigger is not suitable for beginners or those unfamiliar with forced reset mechanisms. Installation requires proper timing adjustment and familiarity with AR-15 fire control groups. Users in restricted jurisdictions should consult local laws before purchase, as detailed in our warranty coverage guide.
What's in the box?
The package contains the complete FRT-15 trigger mechanism, two anti-walk pins, and installation documentation. No tools or lubricants are included, requiring users to supply their own armorer's wrench and appropriate lubricants as specified in our lubrication guide.
Is the FRT-15 worth it at $300?
At $300, the FRT-15 provides value for shooters needing maximum cycling speed. The price reflects the specialized machining of the 7075-T6 aluminum housing and proprietary reset mechanism. For builders prioritizing reliability over speed, standard triggers at half the cost may be more appropriate.
Specs at a glance
Pros & cons
What works
- Reset time of 0.08 seconds — 47% faster than mil-spec triggers
- 7075-T6 aluminum housing — withstands 10,000+ round testing
- Includes anti-walk pins — eliminates need for separate $25 purchase
- Three-position safety — provides installation flexibility options
Trade-offs
- Requires periodic lubrication — every 500 rounds for optimal function
- Not drop-in installation — needs timing adjustment and proper pin alignment
- Limited compatibility — AR-15 pattern only, excludes LR-308 platforms
- Higher maintenance — cleaning interval is 300 rounds versus 1000 for standard triggers
Key attributes
| Mechanism | Forced Reset Trigger (FRT) |
| Compatibility | AR-15 platform |
| Housing Material | 7075-T6 aluminum |
| Component Finish | Black nitride QPQ |
| Safety Selector | Three Position Safety Selector |
| Weight | 3.2 oz |
| Reset Time | 0.08 seconds |
| Included Components | Trigger mechanism, anti-walk pins |
Specifications
| Mechanism | Forced Reset Trigger (FRT) |
| Compatibility | AR-15 platform |
| Housing Material | 7075-T6 aluminum |
| Component Finish | Black nitride QPQ |
| Safety Selector | Three Position Safety Selector |
| Included Pins | Anti-walk Pins |
Best for
- competitive shooting
- tactical applications
- semi-automatic mode
- hard reset mode
Materials
- 7075-T6 aluminum
- stainless steel
- black nitride QPQ coating
What's in the box
- FRT-15 Trigger
- Anti-walk pins
Care
Frequently asked questions
- Is it compatible with Polymer80 lowers?
- Yes, the FRT-15 works with Polymer80 AR-15 pattern lowers. Installation requires proper jig alignment and standard drilling procedures. Use our recommended <a href="/blog/best-drill-bits-for-polymer-frame-modifications/">drill bit specifications</a> for optimal fit.
- Does it fit LR-308 platforms?
- No, the FRT-15 is specifically designed for AR-15 pattern rifles only. For large-frame applications, consider dedicated triggers for our <a href="/products/polymer80-lr-308-80-lower-receiver-polymer-80/">LR-308 lowers</a>. The different bolt carrier group dimensions prevent cross-compatibility.
- How long does installation take?
- Proper installation requires approximately 45 minutes for experienced builders. First-time installers should allocate 90 minutes for timing adjustment and function testing. The process involves precise pin alignment and spring tension verification.
- Does this work with binary triggers?
- No, the FRT-15 operates as a forced reset trigger, not a binary mechanism. It cannot be converted to binary function. The design prioritizes reset speed over select-fire capability, with a distinct mechanical action from binary systems.
- Can I return it if it doesn't fit?
- Returns are accepted within 30 days if the product is uninstalled and undamaged. Installed triggers showing wear cannot be returned. Contact ModFuze support with order details for return authorization and shipping instructions.