yes, it will even cycle most subsonics as long as you keep it clean, the only thing mine hasnt cycled on is remmington CBEE's, which make about as much noise as a bb gun. but like the Aguila Sub-sonic snipers cycle well, as do the finocchi subsonics, and winchester subsonics as well, i threw a smattering of them at mine and the CBee's were the only ones that wouldnt cycle.
For the record the Cbee's are 740 FPS.