I just took a few shots with my Dar Gen 3 and I'm amazed every time I shoot it. For a old man with shaky hands and shooting 30 yds.I think it does great for a low priced pcp rifle. The red dots are 1/2 inch diameter and the top one is 8 shots. I'm shooting Fx 15.9gr which it seems to like the best but it does very good with Jts 18.1 too. 
