BZ Tactical give their take on the Quake Stock from Wolverine Airsoft... "Wolverine Airsoft‬ are once again bringing recoil to the world of HPA, but is it better than their last attempt? In this video we take a look at their new Quake Recoil HPA Stock, explain how it works, test it out on different PSA levels and compare it to Electronic Recoil and Gas Blowback Recoil."