Ak is sold The valken is a f1 with a black speed trigger, prowin, and a mad bull 6.01. $400 The srxl is a fusion engine with purple nozzle, purple poppet, a prowin, flat hop, igl, and a mad bull 6.01. $700 Note all three have tuned triggers for as short of pull as possible And attachments can be added depending on what it is and more money