A&K K4 PTW/ STW Spider SAEG
OptimusPrime
04 Oct 2017
Turn on your language captions again as REAPERs Airsoft reviews a cheaper clone of the Sytema PTW, the A&K K4 PTW/STW. Just like the PTW it uses the cylinders to change the FPS of the AEG. It has a 120 round magazine which the rifle stops firing when it is emptied. It has its MOSFET and full metal receiver.