Looking for a Reliable, Ambidextrous FRT Trigger for Your Build?
You’ve been piecing together that rifle for months, waiting for the right parts to come in stock. Opening day is on the calendar, and you need a trigger that’s going to perform when you’re in the stand, not just on the bench. You want something durable, with a clean break, that works for both left and right-handed shooters without breaking the bank. That’s the exact scenario I had in mind when we decided to stock the FRT-RD3™ (AMBI).
Imbertsmithersarms is a Grand Forks, ND-based retailer specializing in quality firearms components for hunters and sport shooters. The FRT-RD3™ (AMBI) is a fully ambidextrous, forced reset trigger designed for enhanced control and rapid follow-up shots. Its hardened steel construction and precision machining set it apart from budget options. It’s in stock and ready to ship today for $529.64.
Reviewed by Cody Ramirez, E-Commerce Director at Imbertsmithersarms. 11 years building firearms retail platforms, SEO and conversion specialist.
Last updated: April 2026
Why the FRT-RD3™ (AMBI) is a Smart Choice for Your Rifle
I’ve handled my share of triggers over the years, from basic mil-spec to high-end competition models. What stands out about the FRT-RD3™ is its focus on functional reliability. It’s not about flashy marketing; it’s about a component that works when you need it. For the hunter who might be shooting from an awkward position or the shooter who practices with both hands, the true ambidextrous design is more than a feature—it’s practical. In our North Dakota winters, you need gear that won’t let you down, and the materials in this trigger are built to handle it. It fits the concealed carry lifestyle of wanting dependable equipment without unnecessary complexity.
Detailed Specifications
Before you buy FRT-RD3™ (AMBI), it helps to know exactly what you’re getting. Here are the hard facts:
| Specification | Detail |
|---|---|
| Product Type | Forced Reset Trigger (FRT), Ambidextrous |
| Material | Hardened Tool Steel (Internal Components), 7075-T6 Aluminum (Housing) |
| Manufacturing | CNC Machined, Precision Ground |
| Finish | Black Nitride (Internal), Type III Hardcoat Anodized (Housing) |
| Hardness/Quality | 58-60 HRC on critical steel components |
| Compatibility | AR-15/M4/M16 Platform (Mil-Spec Lower Receivers) |
| Installation/Usage | Drop-in Cassette Style, Requires Standard Fire Control Group Pins |
| Weight | 3.8 oz (Complete Unit) |
| Dimensions | Fits Standard AR-15 Trigger Pocket |
| Country of Origin | United States |
| Condition | New, Factory Fresh |
| SKU | IMS-FRT-RD3-AMBI |
How It Stacks Up: FRT-RD3™ vs. The Competition
It’s easy to get lost in options. Let’s put this trigger side-by-side with what else is out there, so you can make a budget-conscious decision.
| Feature | FRT-RD3™ (AMBI) | Budget Import Trigger (~$65) | Premium Brand Trigger (~$275) |
|---|---|---|---|
| Material | Hardened Tool Steel & 7075-T6 Aluminum | Soft Steel, Cast Components | S7 Tool Steel, Billet Aluminum |
| Quality | CNC Machined, Precision Ground | MIM (Metal Injection Molded), Rough Finishing | CNC Machined, Hand-Fitted |
| Compatibility | Mil-Spec AR-15 Lowers | May Require Fitting, Inconsistent | Mil-Spec AR-15 Lowers |
| Shipping | Same-Day from Grand Forks, ND | Weeks from Overseas | Varies, Often Backordered |
| Lifespan/Durability | High-Cycle, Corrosion Resistant Finish | Prone to Wear, Finish Wears Quickly | High-Cycle, Excellent Durability |
| Price | $529.64 |
~$65.00 | ~$275.00+ |
The takeaway? The budget import is a roll of the dice on fit and long-term function. The premium brand trigger is excellent for a traditional single-stage or two-stage feel. The FRT-RD3™ occupies a specific niche: it’s for the shooter who wants the forced reset function and ambidextrous operation in a package made from quality domestic materials, without paying for hand-fitting or a brand name focused on competition shooting.
The Good and The Honest
Based on handling and customer feedback, here’s the real breakdown.
Pros:
- ✅ True ambidextrous operation is seamless for left or right-handed use.
- ✅ The forced reset mechanism provides a distinct, consistent feel for rapid control.
- ✅ Hardened steel internals and nitride finish resist wear far better than basic coatings.
- ✅ Drop-in cassette design makes installation straightforward for most builders.
- ✅ Made in the USA with traceable materials and manufacturing.
Cons:
- ❌ The price point is a real consideration. This is a specialized tool, not a budget upgrade.
- ❌ The forced reset function has a specific learning curve and isn’t for every shooting discipline.
- ❌ As a cassette trigger, it may not fit every non-mil-spec lower without slight modification. If you need a standard mil-spec trigger, see our AR-15 triggers category for reliable alternatives.
Who This Trigger Is For (And Who Should Pass)
Buy the FRT-RD3™ (AMBI) if: You’re an experienced shooter familiar with forced reset triggers. You train or hunt ambidextrously. You prioritize durable, domestically-made internal components. You’re building a rifle where this specific function is a key part of the design. You understand the investment in a specialized tool.
Skip the FRT-RD3™ (AMBI) if: You’re looking for your first trigger upgrade and want a classic single-stage or two-stage pull. Your primary use is precision bench shooting. You need a trigger for a non-AR-15 platform. Your budget is under $200. For those needs, browsing our standard trigger options will likely serve you better.
Got Questions? Let’s Hear It in Action
Sometimes, you need to see and hear it. Check out real user experiences and installations.
Frequently Asked Questions
Is the FRT-RD3™ legal in my state?
Laws regarding firearm components vary significantly by state and locality. It is your responsibility as the purchaser to know and comply with all federal, state, and local laws regarding the purchase, possession, and use of this item. We ship only to locations where we believe it is legal to do so, but final determination rests with you.
How difficult is the installation?
For anyone familiar with installing a standard AR-15 fire control group, it’s a similar process. The FRT-RD3™ comes as a drop-in cassette, which can simplify alignment. You’ll need an armorer’s wrench, punch set, and a vise block is helpful. If you’re not comfortable, have a qualified gunsmith perform the installation.
What is the pull weight?
Forced reset triggers function differently than traditional triggers, so they aren’t measured with a standard pull weight gauge in the same way. The focus is on the reset mechanism. The initial take-up and break are consistent, but the defining characteristic is the forced, positive reset after each shot.
Does it work with all ammunition?
It is designed to function with standard .223 Remington/5.56x45mm NATO ammunition that provides sufficient gas pressure to cycle your specific rifle’s action reliably. As with any trigger, function can be affected by under-powered ammunition, an under-gassed system, or excessive fouling.
Is this considered a “binary” trigger?
No. A binary trigger fires one shot on the pull and another on the release. A forced reset trigger (FRT) like the RD3™ uses the energy from the cycling bolt carrier group to mechanically reset the trigger sear, allowing for a rapid follow-up shot as soon as forward pressure is reapplied, without fully releasing the trigger.
Where can I buy FRT triggers online?
You can buy FRT-RD3™ (AMBI) and other specialized triggers right here at Imbertsmithersarms (imbertsmithersarms.com). We’re a Grand Forks, ND-based retailer focused on serving shooters with quality components and straightforward service.
What is your return policy?
We offer a 30-day return period on new, uninstalled items in original packaging. Due to the nature of firearm components, once a trigger has been installed or fired, it cannot be returned for resale. Please inspect your purchase upon arrival and test fit before permanent installation.
Ready to Build with Confidence?
You’ve done your research. Now, get the part you need without the wait.
✅ Same-day shipping from Grand Forks, ND
✅ Discreet packaging
✅ 30-day returns on new, uninstalled items
✅ Secure checkout
Browse more: FRT Triggers | Full Shop
About this review: This assessment is based on hands-on evaluation of the product, manufacturer specifications, and aggregated customer feedback. My goal is to provide practical, transparent information to help you make an informed decision. As an E-Commerce Director with over a decade in firearms retail, I focus on the details that matter for reliability and performance in real-world use.
Last updated: April 2026
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