That bi pod has got to be adding a good bit of weight. Also, ditch the mag well grip. IMHO, a mag well grip is useless for offhand shooting. The only time I use a mag well grip is when I am at a bench and my rifle is supported. Even then, you sure as hell don't need a special grip.
Another option (that may prove to be just another complication) is to use a quick disconnect sort of mount for that bi pod. That way, when you need the bi pod you can quickly mount it up, but then ditch it for offhand shooting.