So far, it only seems that attention on optics are of very recent thing, at least by their establishment standpoint, you'd more likely see imported optics on police SWAT's guns, mounted on MIL-STD-1913 rail attachment kits manufactured by the 3rd party.
As we all know, in China development of military gears have to be driven by the PLA, even the PAP have to go through that channel, or shop for imported stuff as police SWAT gear. Worse still, the most expedient path of pushing infantry-level optics is the requirement of sub-MOA sniper rifle, but for China to pay attention to modern military sniping only began less than 10 years ago, and that was after their PAP team get hopelessly pwned at their first entry of international competition! Overall, PAP and even PLA as a whole haven't totally grasp the need of advanced optics to augment their infantry weapons.
Though in the due course of their attempt to manufacture better weapons on all levels - from infantry to vehicle mounted - they'll inevitably need to upgrade their optics, but in reality very little is known about China's capabilities in this sector, and if trade shows are of any indication, this sector has yet to receive enough investment or at best, yet to manufacture optics that's at par with the West's.