Looking at the pictures in post#11 they are of similar design and function but when I look close at the cutouts and shape of the product there are significant differences. The original product on the left appears to have more machining done and is probably less in weight. The product on the right does not look as refined. Unfortunately this happens many times in manufacturing even when a patent is present. Hence the Bic Lighter, the Wheelchair, etc. a slight variance and you have a similar product. Sucks it happens but it's common and legal. Look at Harris Bipods, Atlas Bipods, both have competition from company's with very similar designs. Personally, I use Atlas and Harris and if I was buying one of the shown products in post 11 I'd use the SRS.