Xometry does not carry a Federal Firearms License (FFL) and, therefore, cannot produce any product that requires an FFL. As a general rule, this encompasses receivers, suppressors, bump stocks, automatic conversion kits, weapon replicas, and any serialized component of a weapon.
We can build accessories like grips, hand guards, holsters, and other peripheral items. Xometry has the right to refuse work if we feel it may violate or be in a "gray area" with FFL regulations. If a part is auto-quoted and purchased that may be in question a Xometry representative will reach out to the customer.
3D printed components also follow standard manufacturing regulations. For more information on 3D Printing Technology and Firearms please go to https://www.atf.gov/qa-category/3-d-printing-technology-firearms