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FN 509 Flat Trigger Assembly on a FN

AI illustration of a similar part on the gun.

FN · Trigger

FN 509 Flat Trigger Assembly

$32

Build with this part

Opens the builder with this part fitted. Other parts change only if they have to.

Specs

Fits	FN 509 Tactical

Pros and cons

Pros

Genuine FN part
Flat face, drop-in
Low cost

Cons

Same pull weight as factory

Other trigger options