12126. As used in this chapter, "unsafe handgun" means any pistol,
revolver, or other firearm capable of being concealed upon the
person, as defined in subdivision (a) of Section 12001, for which any
of the following is true:
(a) For a revolver:
(1) It does not have a safety device that, either automatically in
the case of a double-action firing mechanism, or by manual operation
in the case of a single-action firing mechanism, causes the hammer
to retract to a point where the firing pin does not rest upon the
primer of the cartridge.
(2) It does not meet the firing requirement for handguns pursuant
to Section 12127.
(3) It does not meet the drop safety requirement for handguns
pursuant to Section 12128.
(b) For a pistol:
(1) It does not have a positive manually operated safety device,
as determined by standards relating to imported guns promulgated by
the federal Bureau of Alcohol, Tobacco, and Firearms.
(2) It does not meet the firing requirement for handguns pursuant
to Section 12127.
(3) It does not meet the drop safety requirement for handguns
pursuant to Section 12128.
(4) Commencing January 1, 2006, for a center fire semiautomatic
pistol that is not already listed on the roster pursuant to Section
12131, it does not have either a chamber load indicator, or a
magazine disconnect mechanism.
(5) Commencing January 1, 2007, for all center fire semiautomatic
pistols that are not already listed on the roster pursuant to Section
12131, it does not have both a chamber load indicator and if it has
a detachable magazine, a magazine disconnect mechanism.
(6) Commencing January 1, 2006, for all rimfire semiautomatic
pistols that are not already listed on the roster pursuant to Section
12131, it does not have a magazine disconnect mechanism, if it has a
detachable magazine.
(7) Commencing January 1, 2010, for all semiautomatic pistols that
are not already listed on the roster pursuant to Section 12131, it
is not designed and equipped with a microscopic array of characters
that identify the make, model, and serial number of the pistol,
etched or otherwise imprinted in two or more places on the interior
surface or internal working parts of the pistol, and that are
transferred by imprinting on each cartridge case when the firearm is
fired, provided that the Department of Justice certifies that the
technology used to create the imprint is available to more than one
manufacturer unencumbered by any patent restrictions. The Attorney
General may also approve a method of equal or greater reliability and
effectiveness in identifying the specific serial number of a firearm
from spent cartridge casings discharged by that firearm than that
which is set forth in this paragraph, to be thereafter required as
otherwise set forth by this paragraph where the Attorney General
certifies that this new method is also unencumbered by any patent
restrictions. Approval by the Attorney General shall include notice
of that fact via regulations adopted by the Attorney General for
purposes of implementing that method for purposes of this paragraph.
The microscopic array of characters required by this section shall
not be considered the name of the maker, model, manufacturer's
number, or other mark of identification, including any distinguishing
number or mark assigned by the Department of Justice, within the
meaning of Sections 12090 and 12094.
(c) As used in this section, a "chamber load indicator" means a
device that plainly indicates that a cartridge is in the firing
chamber. A device satisfies this definition if it is readily visible,
has incorporated or adjacent explanatory text or graphics, or both,
and is designed and intended to indicate to a reasonably foreseeable
adult user of the pistol, without requiring the user to refer to a
user's manual or any other resource other than the pistol itself,
whether a cartridge is in the firing chamber.
(d) As used in this section, a "magazine disconnect mechanism"
means a mechanism that prevents a semiautomatic pistol that has a
detachable magazine from operating to strike the primer of ammunition
in the firing chamber when a detachable magazine is not inserted in
the semiautomatic pistol.
(e) As used in this section, a "semiautomatic pistol" means a
pistol, as defined in subdivision (a) of Section 12001, the operating
mode of which uses the energy of the explosive in a fixed cartridge
to extract a fired cartridge and chamber a fresh cartridge with each
single pull of the trigger.
. Let's see...we could bolt a Bowie-knife bayonette to it 
or extend the grips in some insane wrist-rocket-like fashion.