TEC-HRO sidewinder is a Scatt mount, which can be mounted on the dovetail rail for the diopter (e.g. in front of the loading recess).
Due to the "sidewinder", the center of gravity of the weapon remains almost the same when using Scatt and you do not influence barrel vibrations as is the case when attaching the sensor to the barrel with the steel strap supplied by Scatt.
The use in performance centers has confirmed the product as "very good"!
(Supplied without Scatt sensor)
Attention: does NOT fit Walther Alu LG400/LG500