Guns Modify PMag for the MWS (Marui)

testing the new Guns Modify P-Mag and putting it up against the original mag and the offering from Ace 1 Arms both upgraded and not. see how if stack up in terms of FPS, recoil, weight and realism. #airsoft #pmag #gunsmodify #testing #upgrade #power #recoil #value #best #powerful #gas #gaslowback #greengas #tokyo #marui #tokyomarui #mws #m4 #zet #zetsystem #japanese #fps #realistic #cool #light #lightweight #tactical #preferred #kick #clever #unique #like #design #magpul #polymer