Citation(s) from the GunPolicy.org literature library
Guam. 2003 ‘Identification Card - Possession.’ Public Law 27-61, Title 10, Chapter 60 - Firearms; Section 60114. Hagatna: Guam Legislature. 22 December
Relevant contents
Section 60114. Identification Card: Possession.
(d) No person shall willfully alter, remove or obliterate the name of the make, model, manufacturer's number or other mark of identity of any firearm or ammunition. Possession of a firearm or ammunition upon which any mark of identity has been altered, removed or obliterated shall be presumptive evidence that the possessor has altered, removed or obliterated the same.
Last accessed at:
http://www.atf.gov/firearms/statelaws/25thedition/index.htm