Black Rain certainly has good customer service in my book and was prepared to swap lowers for me and cover the shipping. In the end after talking through the issues and sending pics back and forth - I have decided to keep my lower. Once I put oil on the lower I can get the two pieces together and apart with only a little pressure. If I have future issues I am sure they will help me out. Thanks for all the help Wanna kill these ads? We can help!