In addition to ATF’s list of commercially available firearms sold with “stabilizing braces” and common weapon platforms equipped with “stabilizing braces” that qualify as SBR, any other firearms equipped with a “stabilizing brace” or rearward attachment may be submitted to ATF’s Firearms and Ammunition Technology Division for classification.
Firearms may be submitted to:
244 Needy Rd.
Martinsburg, WV 25405
A prepaid return shipping label should be provided when submitting to prevent delay of the return of the sample.