Description
The FRT-RD3™ (AMBI) is a forced reset trigger designed for the AR-15 platform, offering a unique firing experience for enthusiasts who understand the legal landscape. It’s a machined aluminum unit that provides a distinct, rapid trigger pull, and this is the best price you’ll find for the ambidextrous model.
Key Features
- Ambidextrous Design: The entire housing and safety selector are mirrored for true left- or right-handed operation. It’s a clean setup that doesn’t feel like an afterthought.
- Machined 6061 Aluminum Housing: This isn’t a stamped sheet metal part. The solid construction holds zero and withstands heat better than polymer alternatives I’ve seen in my shop.
- Forced Reset Mechanism: The trigger physically pushes your finger forward after each shot, allowing for a very fast follow-up pull once you learn the rhythm. It’s a different muscle memory than a binary or full-auto system.
- Standard Fire Control Group Footprint: Drops into most mil-spec lower receivers using your existing hammer and trigger pins. Installation is straightforward if you’re familiar with an AR’s lower parts.
Specifications
| Model | FRT-RD3™ (AMBI) |
|---|---|
| Platform | AR-15 / M16 |
| Housing Material | 6061 Aluminum |
| Safety | Ambidextrous 45-Degree Selector |
| Installation | Uses Standard FCG Pins |
| Weight | 3.8 oz |
Honest Assessment
Pros: The build quality is excellent. The forced reset provides a uniquely fast and tactile shooting cycle that’s in a class of its own when it functions as designed. The ambi controls are genuinely useful and well-integrated.
Cons: This trigger is notoriously ammunition and firearm-specific. It requires a specific gas system timing and certain ammunition to run reliably—I’ve seen firsthand guns that simply won’t cycle it. More importantly, its legal status is volatile and subject to change; owning one carries inherent regulatory risk.
Who Should Buy This
This is strictly for experienced shooters and builders who already have a highly-tuned AR-15 (often with an adjustable gas block) for recreational use on private land, who fully understand and accept the potential legal ramifications. It is not a beginner part, a home defense option, or a drop-in solution for every rifle.
FAQ
Is this a machine gun or automatic sear?
No. It is a forced reset trigger. It fires one round per complete trigger pull and release cycle, but the mechanism resets your finger forward. The legal interpretation of this function is what is currently contested.
Will this work in my rifle?
Maybe. Reliable function depends heavily on your rifle’s gas port size, buffer weight, and ammunition. Over-gassed systems with full-power 5.56 ammo tend to work best. After decades of testing triggers, I can say this one requires a specific setup.
What’s the difference between this and the standard FRT-15?
This “AMBI” version includes a mirrored trigger housing and an ambidextrous safety selector lever. The internal mechanism is the same as the standard right-hand model.
Reviews
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