Very Simple
well it's a very sturdy sight. easy to use and set. I like it with the ring around the dot, just look cool with out annoying you. you have 5 or 6 light settings on green and red, and it's goes almost from you barely can se it to you get a little bit blinded. so it very good indoor, outdoor, day or night. I would believe you could drop this sight without it breaking. it's a little bit heavy, but it's okay.