Ok So at first this started off a bit rough. I ordered 2 Aero Precision M4E1 Stripped Lower Receiver - Anodized Black - 2-Pack. Well that would total 4 Receivers. I got 2 not 4. To be honest I was shocked. I have made purchases from armorally.com off and on over the last 3 years. I have never had any issues. I talk about armorally.com to everyone, that I discuss buying gun parts with. So I was floored and to be honest I was mad. These were a must-deliver to an FFL. I know the guys personally at the gun shop where I had them shilled too. So I was worried that arm or all might say take it up with the FFL. But Arm or Ally found their mistake and fixed it quickly. Then they shipped the other 2 receivers 2-day to the FFL. Thank you Arm or Ally You did not let me down.