Hi Edgardo, the TS9 is not optics ready.
Stay safe & have a great day!

Hi Edgardo and welcome. RMR is the current popular Red Dot Optic footprint. This dovetail mount will replace the rear sight to mount an RMR footprint Red/Green Dot like the Holosun 407c: aliexpress.com/i/3256805712921960.html?gatewayAdapt=4itemAdapt ------- budsgunshop.com/product_info.php/products_id/128937/holosun+hs+407c-x2+1x+2+moa+red+dot+black+hardcoat+anodized ---------- Cheers, stay safe and enjoy! Both the front and rear sights are dovetailed, which is a nice feature for replacement and any necessary sight adjustments. Both sights are held in place by small Allen screws.