Rare Breed Triggers FRT-15L3™ — Third Generation Forced Reset Trigger for AR-15

The Rare Breed Triggers FRT-15L3™ is the third generation of the trigger that started it all — the original Forced Reset Trigger, refined and improved for 2025/2026. Drop it into any mil-spec AR-15, and experience the fastest legal trigger system available for the platform.

Third Generation. Better Than Ever.

The L3 designation marks Rare Breed’s third-generation FRT-15 design. Every generation has improved on sear geometry, spring rates, and reliability. The L3 is the culmination — tighter tolerances, smoother reset, and a duty-grade finish that handles thousands of rounds without degradation. This is the trigger Rare Breed has been perfecting since 2020.

What’s in the Box

• 1x FRT-15L3™ Trigger Assembly
• 2x Anti-Walk Pins
• 4x Anti-Walk Pin Screws
• 1x A1 Selector Drum
• 1x A4 Selector Drum
• 2x Selector Lever Roll Pins
• 2x T10 Torx Wrenches

Specifications

Pros & Cons

• ✅ Original FRT — Rare Breed invented forced reset technology
• ✅ Third-gen improvements — best L-series trigger yet
• ✅ Everything included — pins, selector, wrenches
• ✅ Fits any mil-spec AR-15 lower
• ✅ No NFA — one round per pull, fully legal
• ⚠️ Not available to CA, CT, DE, HI, IL, MA, MD, NJ, NY, OR, RI, WA, DC

FRT-15L3 vs the Competition

The BFSIII binary trigger fires on pull AND release. The FRT-15L3 uses the bolt carrier to mechanically reset the trigger, enabling rapid semi-auto fire on every pull without a release shot. Different mechanism, different feel. Many serious AR-15 shooters own both.

FAQ

What AR-15s does it fit?

Any mil-spec AR-15 lower receiver with standard trigger pin spacing. Drop-in, no permanent modification.

Is the FRT-15L3 the same as the original FRT-15?

Same concept, improved execution. The L3 features refined sear geometry and improved spring rates over earlier generations.

Max 2 per transaction?

Yes — Rare Breed limits FRT-15L3 purchases to two per transaction to manage inventory.