Seems like a good deal to me. I think I paid close to $50 for mine:
https://www.amazon.com/gp/product/B..._1?smid=A2EAE9D367ULL8&psc=1&tag=slickguns-20
https://www.amazon.com/gp/product/B..._1?smid=A2EAE9D367ULL8&psc=1&tag=slickguns-20