I 
112TH CONGRESS 
2D SESSION 
H. R. 6704 
To reauthorize the ban on undetectable firearms. 
IN THE HOUSE OF REPRESENTATIVES 
DECEMBER 21, 2012 
Mr. ISRAEL introduced the following bill; which was referred to the Committee 
on the Judiciary 
A BILL 
To reauthorize the ban on undetectable firearms. 
Be it enacted by the Senate and House of Representa-
tives of the United States of America in Congress assembled, 
SECTION 1. FINDINGS. 
The Congress finds that— 
(1) according to data from the Federal Bureau 
of Investigation 8,583 of the 12,664 murders in the 
United States in 2011 were committed using a fire-
arm, and more than 57 percent of the murders that 
occurred in New York State were perpetrated with 
a firearm; 
(2) the ability to produce a receiver for a fire-
arm in the home would circumvent a number of 
VerDate Mar 15 2010 
02:19 Dec 29, 2012
Jkt 029200
PO 00000
Frm 00001
Fmt 6652
Sfmt 6201
E:\BILLS\H6704.IH
H6704
jbell on DSK7SPTVN1PROD with
laws, because the receiver is the component of the 
firearm that bears its serial number, as required by 
regulations; 
(3) the technology of 3-dimensional printers 
(‘‘3D printers’’) is quickly advancing to a point 
where these printers will soon be capable of fabri-
cating fully operational firearm receivers; and 
(4) many commercially available 3D printers 
are able to print materials that are unable to be de-
tected by traditional metal detectors, and may not 
present an accurate image on an x-ray. 
SEC. 2. REAUTHORIZATION OF BAN ON UNDETECTABLE 
FIREARMS. 
Section 2(f)(2) of the Undetectable Firearms Act of 
1988 (18 U.S.C. 922 note) is amended by striking ‘‘25’’ 
and inserting ‘‘35’’. 
SEC. 3. INCLUSION IN BAN OF FIREARM RECEIVERS AND 
BARRELS NOT DETECTABLE THROUGH THE 
USE OF X-RAYS. 
Section 922(p) of title 18, United States Code, is 
amended— 
(1) in paragraph (1)— 
(A) in the matter preceding subparagraph 
(A), by striking ‘‘receive any firearm—’’ and in-
serting ‘‘receive—’’; and 
VerDate Mar 15 2010 
02:19 Dec 29, 2012
Jkt 029200
PO 00000
Frm 00002
Fmt 6652
Sfmt 6201
E:\BILLS\H6704.IH
H6704
jbell on DSK7SPTVN1PROD with
(B) by striking subparagraphs (A) and (B) 
and inserting the following: 
‘‘(A) any firearm— 
‘‘(i) that, after removal of grips, 
stocks, and magazines, is not as detectable 
as the Security Exemplar, by walk-through 
metal detectors calibrated and operated to 
detect the Security Exemplar; or 
‘‘(ii) any major component of which, 
when subjected to inspection by the types 
of x-ray machines commonly used at air-
ports, does not generate an image that ac-
curately depicts the shape of the compo-
nent. Barium sulfate or other compounds 
may be used in the fabrication of the com-
ponent; or 
‘‘(B) any receiver or barrel which is a major 
component described in subparagraph (A)(ii).’’; 
(2) in paragraph (3)— 
(A) by inserting ‘‘, or a receiver or barrel 
referred to in paragraph (1)(B)’’ after ‘‘a fire-
arm’’; 
(B) by inserting ‘‘or such receiver or bar-
rel’’ after ‘‘such firearm’’ each place it appears; 
and 
VerDate Mar 15 2010 
02:19 Dec 29, 2012
Jkt 029200
PO 00000
Frm 00003
Fmt 6652
Sfmt 6201
E:\BILLS\H6704.IH
H6704
jbell on DSK7SPTVN1PROD with
(C) by inserting ‘‘, receivers, or barrels’’ 
after ‘‘firearms’’; and 
(3) in each of paragraphs (4) through (6), by 
inserting ‘‘, receiver, or barrel’’ after ‘‘firearm’’ each 
place it appears. 
Æ 
VerDate Mar 15 2010 
02:19 Dec 29, 2012
Jkt 029200
PO 00000
Frm 00004
Fmt 6652
Sfmt 6301
E:\BILLS\H6704.IH
H6704
jbell on DSK7SPTVN1PROD with