3 NEAs. Search my name and NEA (google better than forum search) and you'll see the setup. I use a magpul AFG on the lower (mounted to short rail), long rail on support hand side w/ ergo/magpul rail cover rear and gogun gas pedal for thumb forward. Opposite side is a light. Lights are a must on home defense guns for me.
Balance are factory beaver barf or wood.
Furniture and accessories are different strokes. For instance, for folks that need optics but have bad eyesight, the side rail is a godsend. But, the reason CSA added seems to be b/c it's much cheaper than a quality forend. And, I'd personally have a REALLY hard time spending aimpoint money on a red dot, especially for every rifle. But vision make red dots not an optimal choice for me. For $600, one can get 2 quality prism red dots or a solid magnified and illuminated variable. But like all furniture and accessories, it's YMMV.