Grab some drinks and popcorn as this is a lengthy video review by Pain X. He reviews the Tokyo Marui HK416 Recoil Shock, or the Next Generation AEG with electric blowback and recoil features. This goes for the custom versions in the form of the DEVGRU and DELTA as well... "In this in depth video I give a full review on the Tokyo Marui Recoil Shock (HK416 Devgru AND Delta)."