For anyone wondering if this horn fits or not: I ordered this horn despite other reviews saying it doesn't fit Hitec servos. After it arrived, I held my breath and gave it a go, well, it didn't fit. So I contacted Robotshop and they sent another one the next morning (now that's great customer service). The second horn shipped to me fit my servo perfectly. And on closer examination, I noticed that it was somewhat different from the first one I received (different aluminum grade). In summary, I think the ones that do not fit might be from a bad batch or from another manufacturer (not lynxmotion). All in all, I'd recommend getting these especially since Robotshop has exceptional customer service plus you can't find these cheaper anywhere else in Canada (that I know of).