That Glock is a SBR.

Here's the step-by-step if I were doing this:
  • Do not under any circumstances possess the stock for your gun until you have an approved Form 4 for the SBR. Doing otherwise is felony constructive possession of an unregistered SBR. A friend who does not own a Glock can possess it for you or better yet, you can order it when you get the SBR transferred to you.
  • Call Vector and talk with Ralph or Rex to see if they would register a Glock for you as a SBR and mark it. I'm assuming they will. You may have to show them this ATF letter (http://www.atf.gov/firearms/041006-vert_grip.htm) so they understand that they can transfer it directly to you on an approved Form 4 and no transfer dealer need be involved.
  • Call BATF Industry div. here in Denver and ask them to send you a few Form 4 paperwork kits (the Form 4 is also known as form 5320.4 if you run into a ditz who is unfamiliar with them). These kits will consist of duplicate F4's, duplicate FD-258 FBI fingerprint cards with ATF's routing info stamped on them, and a citizenship certification form 5330.20. The forms can also be downloaded as .pdf files and printed double sided, but the FP cards are not something to make yourself.
  • I prefer to download the BATFE forms from http://www.titleii.com/Forms.htm as .pdf files. I have Adobe Acrobat so I can use it to fill out the Form 4 and even embed my photo in the document. It all looks very professional. It MUST be printed double sided to match the original form and must be submitted in duplicate. All signatures on both copies of the forms must be in original ink. By the way, I put "Personal collection, investment, and other lawful purposes" in section 15 as my "reasonable necessity".
  • Mail Vector your gun and your partially completed, but unsigned Forms 4. You can fill out the description of the firearm including the original serial number and model. Also, you'll need to know the overall length with the stock attached. Note that the manufacturer on the Form 4 will become Vector, not Glock or Glock USA.
  • Vector may want the stock at this point. If so, have it sent to them. As a manufacturer, they are not subject to constructive possession laws.
  • After Vector does the marking and sends in their F2 to the BATFE, the gun officially becomes a SBR. They should sign and date their section on your F4's, plug in their FFL + SOT EIN info and mail them back to you. You should make sure that section 9 has "I do" circled on both copies. This allows you to call and check on the transfer status without involving Vector. Technically, the F4 is their tax return, not yours.
  • Once you get the F4's back from Vector, sign and date your certification in section 15 and take them down to the Sheriff/PD to get the CLEO certification. It's also a good time to get the fingerprints done. Note the ink color required by the FBI on the FP cards. Don't assume you can ignore the instructions. They will kick them back. Don't ask me how I know. ops: The employer info they ask for pertains to the person taking the prints, not you.
  • At this point, you should have the F4's signed by the CLEO, have attached the required photos, and have the FP cards and the citizenship certification filled out. You need to attach a personal check for $200 made payable to BATFE. I prefer personal checks so I can tell when they were cashed. That tells me the forms are in the system being processed at that point.
  • Attach a cover letter addressed to "Dear NFA Examiner" informing them that this is your gun and the manufacturer converted it for you and is transferring it back to you. I would also attach a copy of the ATF letter (http://www.atf.gov/firearms/041006-vert_grip.htm) in case you have a rookie examiner. Send this whole paperwork package, check and all to BATF at the Chicago address on the Form 4.
  • After the form 4 is approved, ATF will send it to Vector. They'll make a copy for their records and send the original with the gun to you.


Now you can possess the stock and attach it. Since it is a SBR, you'll need permission to take it across state lines which is pretty simple to get. Also, now that the gun is a title 2 weapon, it must remain under your control at all times. The wife can't take it out on her own. You should keep the original F4 in a safe place and keep a photocopy with the weapon.

I know this seems daunting the first time through, but if you can get a CLEO signoff, it's really very simple and rather painless.