Frt-15 vs Binary Trigger: Which is Better?
FRT-15 vs Binary Trigger: Which is Better?
You’re looking at your AR-15 and thinking about upping the fun factor. Maybe you’ve seen the videos. You want something faster than a standard semi-auto pull, but you’re stuck between two big names: the FRT-15 and a standard binary trigger. They’re not the same. Not even close. And the choice you make has huge implications for your wallet, your rifle, and frankly, your legal standing. Let’s break it down, no fluff.
First, the core difference. A binary trigger is a two-stage system. Pull, it fires. Release, it fires again. You get two shots per trigger cycle – one on the pull, one on the release. It’s predictable. The FRT-15, or Forced Reset Trigger, works on a different mechanical principle. It uses the energy from the bolt carrier group to force the trigger to reset almost instantly. This allows for a much, much higher rate of fire – think “bump fire” speeds – but it’s still technically one shot per function of the trigger. That technicality is the heart of the entire legal debate.
So, which one is better? It depends entirely on what “better” means for you. Is it raw speed? Is it reliability? Is it staying out of legal gray areas? Let’s get into the specifics.
Head-to-Head: FRT-15 vs Binary Trigger
| Feature | FRT-15 | Binary Trigger |
|---|---|---|
| Price | Historically $350-$500. Now, due to rarity, prices are speculative and often inflated on secondary markets. | $250-$450 for quality units from brands like Franklin Armory (BFSIII) or Fostech Echo. Readily available at that price. |
| Quality & Feel | Machined aluminum housing. The reset is insanely short and crisp. It feels like a high-end competition trigger when used normally. | Varies by brand. Some have a spongy second-stage break on release. The Franklin BFSIII is generally considered the gold standard for a clean, consistent binary break. |
| Ease of Installation | Drop-in cassette style. You remove your old fire control group and drop the entire FRT-15 unit in. Takes 5 minutes with a punch. No gunsmithing. | Also a drop-in unit for most models. Same simple process. Some may require minor safety selector fitting, but it’s generally a 1:1 swap. |
| Durability | Built like a tank. The forced reset mechanism is simple and robust. Can handle high round counts if you can afford the ammo. | Very durable. Designed for sustained use. The Franklin BFSIII has a proven track record with tens of thousands of rounds for many users. |
| Availability | Effectively zero. New production was halted by the ATF’s cease-and-desist. You might find one in a private sale, but it’s a gamble. For current, legal alternatives, you can browse trigger components here. | Widely available. In stock at numerous online retailers and local shops right now. No hunting required. |
| Legal Status | The ATF has classified it as a machine gun. Possession of one purchased after the ruling is a felony. It’s the single most important factor. We have a detailed FRT-15 FAQ that covers the legal history. | Federally legal. Sold by major retailers. However, some states (like Washington) have recently banned them. Always, always check your state and local laws. |
The Speed vs. Control Debate
If you want the absolute fastest rate of fire possible without a tax stamp, the FRT-15 was the king. No contest. But that speed comes at a cost. It’s harder to control. You’re burning through a 30-round magazine in about two seconds. It’s a blast, but it’s purely for recreational mag-dumping. A binary trigger gives you deliberate, controlled pairs. Pull-release. It’s slower, but you can actually aim the second shot. It’s more useful for certain drills or just a different style of plinking.
Here’s the thing about the best FRT-15 experience: it demanded a specific setup. You needed a standard carbine buffer and spring. Some rifles with adjustable gas blocks or heavy buffers would choke. A binary trigger is far more forgiving. It’ll run in almost any AR-15 that’s in good working order.
The Verdict: Which One Should You Buy?
Look, this isn’t even a fair fight anymore, and that’s because of the law. The frt-15 vs binary trigger discussion is largely academic for new buyers. Unless you already own an FRT-15 from before the ATF’s reclassification and have documentation, pursuing one now is a profound legal risk. It’s not worth it.
The binary trigger is the clear, practical choice for 99% of shooters. It’s available, it’s federally legal (check your state!), it’s fun, and it teaches a unique trigger rhythm. You can buy one today from a reputable dealer, install it in an hour, and shoot it this weekend without looking over your shoulder. For a deep dive into the tech and history that led to triggers like these, our complete guide to forced reset triggers is a solid resource.
And that’s the bottom line. The FRT-15 is a fascinating piece of engineering that pushed a boundary until the government said “stop.” The binary trigger operates within a well-understood boundary. One is a historical footnote for most; the other is a product you can actually buy and use.
If you’re building or modifying an AR platform and want to explore unique fire control options, start with what’s legal and reliable. You can browse our full catalog for parts and kits that let you build something awesome within the confines of the law. The goal is to have fun and stay safe – in every sense of the word. For all your build projects, from frames to finished uppers, the team at P80 Kit has the components and the know-how.
So, which is better? For speed alone, the FRT-15. For everything else – availability, legal safety, controlled shooting – the binary trigger wins. And in today’s climate, that makes it the only real choice.


