All manufacturers will have until April 1st, 2013 to file their annual manufacturing report. While ATF should have mailed you out a copy, if you didn’t receive a copy, here is a copy of the ATF Form 5300.11. For those who are unaware, you can file this report via email by emailing it to AFMER2@atf.gov. You will receive a confirmation email of their receipt of the form within several days. If you mail or fax your report, or if you emailed your report but did not receive a receipt confirmation email, you can contact FESD Program Analyst Tom DiDomenico at (304) 616-4590 to verify that ATF received your report.
If you have questions about filling out the 5300.11, most of your questions can be answered here. And yes, even if you did not manufacture a single firearm, you must submit the form.