This is the "Chode M" option of a midsized-grip and a compact slide with an FN 509 parts kit. This was printed using Polymaker Fiberon PA612-CF15.

The flowers were engraved using 3D Builder's emboss tool, and then I painted them with a bit of primer, acrylic paint markers/pens, and then a light matte sealant coat from Rustoleum.

The ambi mag release drops the magazine fully, the ambi-slide lock works, and it passes all function tests.

I purchased a coiled roll pin from Apex Tactical which made the locking block installation significantly easier after some assembly lubricant, and I highly recommend anyone looking to build an FNS or 509 do the same. I'd say like a Glock, this took 20-25 minutes to build after some practice.

Idk why the slide sticks out partly past the frame, but it looks cool and works. I probably accidentally put a mid-sized slide on a compact length frame, which the FN 509 is designed to be able to do.

This is also my first build and first build post :). I'm super super proud of it.