Non-standard: Improvised, Country made,

Imitative firearms
WHAT ARE IMPROVISED FIREARM ?
Also called as Country made or zip gun or pipe gun or home made
firearm.

Any item that has been Designed,

modified, or Disguised
to function as a weapon.
These are manufactured other than an authorized firearm manufacturer
or a gunsmith, and are typically constructed by adapting existing
materials to the purpose.

No standard specification and no standard raw material is used.

Highly dangerous and unpredictable.

Have short life span

Material Used for Its Construction:
BARREL
Iron Tubes
Sanitary Pipes/ water pipes
Bicycle frames, etc.
BODY OF FIREARM
Metal Stripes for action
Wood pieces for butts, etc.
ASSEMBLY
Metallic wires
Nut bolts/ iron nails
Cotton/ synthetic/ jute threads
TYPES OF IMPROVISED FIREARMS:
Zip guns Necklace gun
Pen guns Tear gas gun
Pipe guns
Pocket gun
Mini-maglite gun
Cigarette packet gun
Concealed bolt-guns
Briefcase gun
Mobile cellphone gun
Double-barrel keychain gun
Folding gun
REAL “COLORIZED” HANDGUN ,
etc.
 Zip guns
Zip guns are among the most commonly improvised firearms
Zip guns are generally crude homemade firearms consisting of
a barrel, breechblock and a firing mechanism.
A handgun round is inserted snugly into a small diameter tube.
That "loaded" tube is then inserted into a larger pipe, which has an
end cap with a piece of pointed metal inside it.
When a suspect slams the end cap back against a hard surface, the
pointed metal strikes the primer of the round like a firing pin and
discharges the weapon
 PEN GUNS
-Pen guns are zip-gun like

firearms that resemble ink pens.

-They generally are of small calibre

and are single shot.

-Some pen guns are not

designed to fire regular

cartridges, but rather blank cartridges or

tear gas cartridges or signal flares.

PIPE GUNS
These were first seen in Philippines during WORLDWAR-II.
Improvised version is easily made by using 2 pipes and an end- Cap, these guns usually fire
shotgun shells.

Place the smaller diameter pipe into the larger

diameter pipe and forcefully slide it back until the
shells primer makes contact with a fixed firing
pin located inside the end-cap, firing the gun.
They are easy to use and easy to make and can
easily fire around 12 to15 shots per minute.
Other improved version use improvised
detachable magazines.
Cryptic
firearms:
Some more complex improvised firearms are not only
well-built, but also use mimicry as camouflage, taking the
appearance of other items. Improvised firearms in the form
of flashlights, cellular telephones, canes and
large bolts have all been seized by law enforcement
officials, across the globe.
-MINI-MAGLITE GUN:
• -A Mini-Maglite Gun that fires a single .380 or .22 Calibre round.
• -It operates just like the Maglite Shotgun Flashlight.
• -This weapon is manufactured in several colours and has a optional end
cap that will help make the weapon look like a normal flashlight.
-CONCEALED BOLT GUNS :

• -It’s homemade .22 calibre weapon

that fires a single .22 stinger.
• -To fire the weapon, all you have
to do is pull back on the spring
loaded hex head of the bolt.
• -The weapon is about 5/8 inches
in diameter and 4 inch long.
-MOBILE CELLPHONE GUN :
• This mobile phone has been altered
to fire four .22 calibre rounds with a touch
of the otherwise standard keypad.
• The phone does not function as normal
cell phones and has been completely
gutted and replaced with a rudimentary
spring-wound percussion mechanism.
• From the outside this “phone” is
indistinguishable from normal cell
phone except it is much heavier.
• The gun is loaded by twisting the phone in half.
• A .22 calibre round fits into the top of
the phone under the screen. The lower half,
under the keypad, holds the firing pins.
• The bullets fire through the antenna by pressing the keypad from
numbers five to eight, or depressing the “connect” button (depending on
its fabrication)
FOLDING GUN
• - This is one of the smallest firearms
• -It is a 5 shot .22 calibre pistol
• -It has a grip that folds over the barrel and cylinder but…fits easily in
pockets, hats, etc.
 -NECKLACE GUN :
• -This same firearm was found tied with a rope.
• -It’s would be easy to miss this type of firearm in quick custody search.
• -It was firstly found around the neck of suspect in Oklahoma (America).
 -TEARGAS GUN
• -These are .22 calibre non-lethal
Tear Gas Guns.
• -They are sold through “Police”
and “Sportsman” Magazines.
• -No federal license or gun permit
is needed to carry one.
 -POCKET GUN :
• -It is a single shot weapon, double action weapon made by the
“Downsizer Corp.”
• -It measures 3 ¼” long, 2 ¼” tall, and is .90” thick.
-CIGARETTE PACKET GUN :
• -This firearm is usually a single-shot weapon of varying calibres.
--Although much heavier than a normal cigarette packet, this weapon is
visually difficult to distinguish from the
genuine article.
• -Real cigarettes will often be
inserted next to the barrel,
and the firing button is concealed
beneath the packet's label.
• -In addition, the packet could be
kept closed, concealing the barrel
but not hindering the operation of the weapon.
• Any brand of cigarette or cigar packaging could be used in such a device
-BRIEFCASE GUN :
• -Briefcase’s design features a fully
functioning six shot .22 LR revolver
incorporated in the handle of a
professional briefcase.
• The case functions as a regular
briefcase, with the additional
capability of firing six .22 LR shots.
• -This double action revolver allows you to fire as fast as you can pull
the trigger.
• -Because the firearm is carried like a regular briefcase, you are
always holding the firearm at the proper height.
-DOUBLE-BARREL KEYCHAIN GUN :
• -This weapon has been recovered at several customs check points across
the world
• -The device was originally
marketed to fire tear gas,
however the bores have been
modified to fire a handgun
round.
• -The two large buttons located
side by side are designed to fire the spring loaded weapon.
• -Each button will fire one .32 Auto round.
• -The black button on the opposite end allows for the weapon to be
opened and reloaded.
 -REAL “COLOURIZED” GUN :

• -These guns have been either painted, coated with a coloured ceramic
coating or wrapped in colour tape to lull you into thinking they are toy
guns in order to slow down your reaction time.
Repurposed or
conversions
Flare guns have also been converted to
firearms.
This may be accomplished by replacing the
(often plastic) barrel of the flare gun with a
A zip gun constructed
metal pipe strong enough to chamber from a toy cap gun. The
gun is capable of
a shotgun shell, or by inserting a shooting a .22 caliber
round
smaller-bore barrel into the existing barrel
(such as with a caliber conversion sleeve) to
chamber a firearm cartridge, such as a .22
Long Rifle.
Air guns have also been modified to convert them to firearms.
FEW other types across the world:

Zippo lighter
gun
Finger-ring
gun

Homemade submachine
Liberator (Zip guns
Gun)
MAJOR DRAWBACKS OF USING
IMPROVISED FIREARMS :
• Bullet may deviate from its path because of improper assembly of
parts of firearms.
• Before reaching target the bullet may not reach because defect in
barrel or muzzle.
• Using improper materials, sometimes firearm may backfire i.e. get
fired in wrong direction.