ATF Firearms Curios or Relics List, A regulation implementing Federal firearms laws, 27 CFR Section 478.11, defines C&R firearms as those which are of special interest to collectors by reason of some quality other than is associated with firearms intended for sporting use or as offensive or defensive weapons. To be recognized as C&R items, 478.11 specifies that firearms must fall within one of 3 categories. This manual will give you guidance's for a classification of your particular firearm. Contents: Federally Licensed Firearms Collectors. What are Curios or Relics. Regulations Applicable to Licensed Collectors. Curios or Relics, and Collectors Items (Definitions and Determinations). Collectors Wanting a Determination. Import Restrictions. The Firearms Curios or Relics List. Ammunition classified as curios or relics. Firearms classified as curios or relics (still under the GCA). Weapons removed from the National Firearms Act (NFA) as collector's items which are determined to be curios or relics subject to the provisions of the GCA. Weapons removed from the National Firearms Act (NFA) as collector's items that are antiques not subject to the provisions of the GCA. NFA weapons classified as curios or relics (still under the NFA and the GCA).