I have one that I used with my scar 16s and other rifles. Mine actually has an integrated light, but functions the same as the one in the picture . It's a very good bipod / grip. It works differently than a Harris or Atlas , but then again it serves a dual purpose.
I had one and took it off. It's too large as a foregrip and not a very good bipod as the legs don't always deploy to the same length and it's not very solid. I went back to the TD stubby foregrip and got an Atlas bipod which has the ADM QD lever so it goes on and off easily and quickly. YMMV.