At FN Specialties, we provide a curated collection of FN-specific accessories that fulfill the very best standards of quality and general performance. Improve your FN firearms with our expertly crafted accessories and expertise improved operation and taking pictures precision. This is essentially a clone of NcStar mount, done ideal. https://www.primmaryarmshop.com/product-tag/fn-510-accessories/?per_page=9&layout=list