How To Reassemble The Sear Housing Block of the FN 509

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In General

In this video Apex's Scott Folk walks you through just the reassembly the Sear House Block of the FN 509 pistol (or the FNS), including the thumb safety version. This is the most challenging part of the overall assembly process.

This video is also included in the video longer video on installing the Apex Action Enhancement Kit.

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