I thought I would throw my hat into the ring and post up my EBR. It's G&P's long version decked out with a G&P M3 with Butler Creek Flip-ups and a Grippod. The reason I chose the Grippod was that a friend of mine stationed in the Sandbox said it performed very well on his weapon of choice and that given the design of the G&P EBR, there's very little rail space on the bottom of the foregrip.
Cheers,
Taito.