Specifications for imitation firearms 3
1
Blank-firing imitation firearms, other than those described in paragraph (2), must conform to the following specifications—
a
an imitation firearm must incorporate an inclusion;
b
the inclusion must be wholly made of a material which is at least as resistant to being cut, drilled, bored, ground (or any similar process) as sintered tungsten carbide in the range 1550-2000 HV 302;
c
the inclusion must wholly block the barrel and should be permanent and incapable of being knocked out without destroying the chamber or barrel;
d
part of the inclusion must be incorporated into the rear of the dummy barrel; and
e
the inclusion must be intended to prevent—
i
the creation of a hole through the dummy barrel along its axis; and
ii
the removal of a dummy barrel, unless the frame and chamber area of the firearm is rendered useless as a result or its integrity so compromised that it cannot be used to form the basis of a firearm without significant repair or addition.
2
The blank-firing imitation firearms described in this paragraph are—
a
imitation revolvers; and
b
imitation firearms where the blank cartridges are loaded vertically at 90 degrees to the dummy barrel and which fire, and vent the gases produced on discharge, in the same direction.
3
Blank-firing imitation revolvers must conform to the following specifications—
a
an imitation revolver must incorporate an inclusion cast into the dummy barrel and a separate inclusion cast into the cylinder which extends to fully obstruct all the dummy chambers;
b
the inclusions must be wholly made of a material which is at least as resistant to being cut, drilled, bored, ground (or any similar process) as sintered tungsten carbide in the range 1550-2000 HV 30;
c
the inclusions should be permanent and incapable of being knocked out without destroying the chamber or barrel;
d
the barrel inclusion must wholly block the dummy barrel and part of it must be incorporated into the rear of the dummy barrel;
e
the barrel inclusion must be intended to prevent removal of the dummy barrel, unless the frame of the firearm is rendered useless as a result or its integrity so compromised that it cannot be used to form the basis of a firearm without significant repair or addition;
f
the inclusions must be intended to prevent the creation of a hole through the dummy barrel or chamber along their axis; and
g
the revolver must vent the gases produced on discharge at not less than 80 degrees from the axis of the dummy barrel.