If that took FSR's, and wasn't too heavy, I would probably buy it. (FSR's because I want something that need to stay in place.. maybe not even being used all day long without issue).
Obviously would need modding, but hey... I'm a tinkerer lol. Will probably be a stupid price though
EDIT: I don't know why I thought it was .68 lol. Dang it. Need .50 cal fsr.