Looking to sell an upgraded Echo 1 RPK Comes with 2 drum magazines (1 new, 1 used), 3 RPK high-cap magazines, optic mount and Replica EoTech. Overall the gun performs fantastic, however it’s pretty well used. I’ve upgraded it with a new piston, motor, shimming, bucking and spring. Chronos at about 380 FPS with .20g bbs. For firing videos, I have a whole series on YouTube where I exclusively used it at Ballahack Airsoft Field, so I’ll link that down below Looking for $250 shipped OBO, no trades. https://youtu.be/godNuIcFuw8