Purchased the tailhook adapter for my Type 1 BREN stock, and it was at my door in under a week. The installation was a breeze, and the Mod 1C Tailhook fit perfectly. Be sure to check the instructions page, because I did not know how to tighten the fit until Dan sent me the link. Perfect part and perfect service! Can't wait to purchase one of his lowers when they become available again.