I have an Allsun scope which I bought from china. It looked a bit more rugged and repairable than the first one I bought. I accidentally spiked the first one and found it was all plastic welded and impossible to fix. It turned out I was right about the Allsun as the on/off switch was jiggered within a month. I used a switch off of a Sony walkman to fix it. Using the allsun is like using a pitchfork to eat spaghetti it is so agricultural. Wouldn't touch any of their products with a barge pole.