Here is how to mount Leupold Deltapoint Pro on FNX 45 Tactical. I have researched the internet for hours and have also contacted FN customer support, but I found nothing that solved the problem until I came across this.
Step 1. Install Leupold Optic Plate 171203
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The best way to install the mounting plate using the screws provided in the package.
- Tighten to 18-20 in-lbs to the slide