From Guns.com:

Purchased specifically to fill a Counter (small) Unmanned Aircraft Systems, or C-sUAS, capability, for the British, the Ministry of Defense has contracted with Israel’s Smartshooter to deliver a small quantity of their advanced optics systems. The company’s SMASH 2000L, shown in images released by the MOD, is an add-on see-through optics with a lock and track system that can recognize a target and maintain a lock even if it or the user moves.