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Rare Breed TriggersForced reset triggers
FRT-RD3™ (SEF)
Fits
HK roller-delayed
Selector
SEF (standard)
Ships
1–2 business days, tracked
HK roller-delayed

FRT-RD3™ (SEF)

The FRT-RD3 (SEF) is Rare Breed's forced reset trigger for HK roller-delayed platforms, using the classic SEF selector layout.

$615.00$430.5030% off
Free US shipping · 1–2 business days · tracked
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FRT-RD3™ (SEF)
In stock · ships in 1–2 business days
$615.00$430.50
Total (shipping included) $430.50
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Overview

The FRT-RD3 (SEF) brings the forced reset trigger to HK roller-delayed platforms with the traditional SEF (Safe / semi) selector layout. It is a semi-automatic trigger — one round per function — tuned for the roller-delayed fire-control geometry.

Genuine Rare Breed Triggers®. Roller-delayed HK pattern guns vary; confirm your exact host and selector setup before ordering, and see the AMBI version if you run an ambidextrous selector.

Selector compatibility matters on these — our team can confirm fitment before you buy.

Guides: Are FRTs legal? · Spot a fake · What is an FRT?

Specification
BrandRare Breed Triggers
ModelFRT-RD3 (SEF)
PlatformHK roller-delayed
SelectorSEF (standard)
TypeForced Reset Trigger (semi-automatic)
ConditionNew
OriginMade in USA

Frequently asked questions

What is the RD3 for?
HK roller-delayed platforms. The SEF version uses the standard selector layout; the AMBI version supports an ambidextrous selector.
SEF or AMBI — which do I need?
Match it to your rifle's selector. If you run an ambidextrous selector, choose the FRT-RD3 (AMBI). Ask us if unsure.
Is it genuine?
Yes — authentic Rare Breed Triggers® only.
Is it legal?
Federally treated as semi-automatic per the 2025 settlement; state restrictions apply — verify yours.

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