At FN Specialties, we provide a curated number of FN-unique accessories that meet the best standards of quality and general performance. Enhance your FN firearms with our expertly crafted accessories and working experience enhanced operation and taking pictures precision. This is basically a clone of NcStar mount, performed suitable. https://www.primmaryarmshop.com/product-tag/fn-510-accessories/?per_page=9&layout=list