SayUncle confirms changes to the recoil system …

The Gen 4 uses a double captive recoil system ala the G26/27/33. To accommodate this, the area in the frame below the recoil rod is more cut out. This reduces perceived recoil. It also should take care of the problem of malfunctions caused by limp-wristing the grip. And should eliminate reported failures to eject when a weapon light is mounted.

Interesting!