I made a few phone calls and the same woman answers the phone, told me to send her an email. That didn't work well....no replies to my emails. Finally after weeks of this silliness, I called again this morning. I asked why they are avoiding me. She got rude and told me to send the item in, angry voice, with "Have a good day!" and then hung up on me. Wow! I am not going to purchase any products from Standard Mfg ever again. I have dealt with many and most Firearm Manufacturers and have never ever been treated rudely by any of the customer service or technical people. Lessons learned. Edit added.... Please note that the greatest frustration is lack of response to my several emails to get this resolved in the first place. Additionally I was hoping for an email response that would have advised me of the correct address and department or person to reference. If they don't offer that kind of professional dealings, then I will know for future reference. I usually try to buy products that go into builds for other people that are good quality, because I care about what I do for other people and take pride in my work and service. I was embarrassed that this lady who asked me to build the AR-15 for her, took that day off, was excited to have a day of testing her "Baby" as she called it, and then we had the failure of the BCG to function. I also learned to take spare parts out with me when doing that kind of testing. First time to experience this and again, lessons learnedl.