As of now its about 40 grams and the plastic is 15 grams. I don't have an aluminum one to compare it to. But I will be doing more machining on it to hopefuly cut the weight to almost half If not more. (so says solidworks) It's really light as of now for such a big piece. I will finish up skeletonizing Monday after deciding on a final design and post updated pictures then. Keep a look out cause I will update and be willing to make some for people that are interested.