I recently found these bio's on airsoft gi and was wondering if anyone knew about these burst fire bio bb's. I have never seen these on any airsoft retail website, there will be a link below. Anyway, for like 5-7 bucks a pop for 2700 bio bb's that is cheap. They have them in .25's and .23's as well. I am just wondering if anyone has heard of them or used them before, and also if they are quality bb's?