My 2 cents...
Harris makes awesome bipods (I have one), but another option, if you haven't seen one, is the "Grip-Pod". It's a forward grip with a spring loaded bipod inside. I like mine a lot. It's a little bigger than the average forward grip, but great for larger hands. Best part is you have a bipod with you all the time without taking up more space on the gun. Here is a link to an eBay listing for the military model GPS-02 (best price I have found, just bought my 2nd one here)....
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