these are in several ways better than the WE from my experience, the internals are steel and need not be upgraded (unlike the we) and the receiver steel is actually of a higher quality. — where these fall short are the nozzle (which was both reinforced and upgraded with better oring) and the mags that leak out of the box. However once the mags are sealed they are actually made of stronger plastic and metal than the WE ones. They use the same valves and are able to be DH modded. — The gun fires flawlessly. —- ask any questions.