It looks good and works so far. Otherwise, processing is very bad. The screws holding the rail have knurled nuts, They are designed as simple Phillips screws. The nuts are not anchored in the housing. So you have to have a Phillips screwdriver and a wrench at hand What the change in the "field" difficult. Otherwise, the target optics is very loose on the carrier. The height adjustment is a joke. because the height adjustment of the optical system is still loose. The lateral adjustment is 3 / 10th game good for the price The on and off switch is a market very susceptible miniature slide switch Estimation of life .. One can imagine. to play all in all nice .. Goals can you forget