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Guide · updated 2026-08-16

FRT-15 vs FRT-15L3 vs FRT-15C3

A plain comparison of Rare Breed's AR-15 forced reset triggers so you order the right one.

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The RBT Editorial Desk · Firearms parts research & buyer education
AR-15 & HK-platform trigger research · fitment and compliance focus

All three are Rare Breed forced reset triggers for the AR-15: semi-automatic, one round per function, with a spring-forced reset for speed. The differences are about generation and trigger face.

ModelWhat it isFace
FRT-15 (original)The trigger that started it all; the model at the center of the ATF litigation.Curved
FRT-15L3Rare Breed's current-generation AR-15 FRT — the one most buyers want today.Curved or Flat
FRT-15C3An AR-15 FRT in the current family; another current option alongside the L3.Curved

Which should you buy?

For a new purchase today, the FRT-15L3 is the mainstream choice — current generation, offered in curved or flat face. The FRT-15C3 is the alternative in the same current family. All install on a standard AR-15 lower and want a full-auto BCG and H2/H3 buffer to run reliably.

Whichever you choose, buy genuine and confirm your state's legality first.

This page is general information, not legal advice. Firearm law changes and varies by jurisdiction. Confirm the current law where you live before ordering, and consult a qualified attorney if you are unsure.

Shop these models:
FRT-15L3FRT-15L3 FlatFRT-15C3

Frequently asked questions

Should I buy the FRT-15L3 or FRT-15C3?
Both are current Rare Breed AR-15 FRTs. The FRT-15L3 is the mainstream pick and comes in curved or flat; the C3 is an alternative in the same family.
Is the FRT-15L3 better than the original FRT-15?
The FRT-15L3 is the newer, current-generation AR-15 model and is what Rare Breed offers today.