BOLIVARIAN REPUBLIC OF VENEZUELA

MINISTRY OF PEOPLE'S POWER FOR DEFENSE

NATIONAL EXPERIMENTAL POLYTECHNIC UNIVERSITY OF THE FORCE
NATIONAL ARMADA UNEFA
SUCRE NUCLEUS - CUMANÁ HEADQUARTERS

BROWNING 9 MM PISTOL

Members: Professor:
Bro. Luis Flores C.I:24.739.991. José Marín

Cumaná, February 2013

 INTRODUCTION

A weapon is a tool of aggression useful for hunting and self-defense, when

it is used against animals, and can be used against human beings in tasks of
attack, defense and destruction of enemy forces or installations, or
simply as an effective threat. A weapon is therefore a device that
it expands the direction and magnitude of a force,

The Browning GP-35 is a 9 mm semi-automatic pistol with single action.

based on a design initiated by the American firearm inventor
John Browning, and completed by Dieudonné Saive of the Fabrique Nationale (FN)
from Herstal, Belgium. The name GP-35 comes from the initials in French, 'Grande
"Power", that is, "Great Power", and refers to the capacity of the charger to 13
cartridges, almost double that of contemporary designs such as the Luger P08 or the
Mauser 1910, the GP-35 has a single action mechanism, it works by
mass recoil with a short barrel length and is equipped with a magazine of
double row that stores 13 cartridges. Originally had an extractor
internal, similar to that of the Colt 1911, but after World War II,
it was replaced by an external type.

This weapon is made up of a slide, frame, barrel, spring

screw axle retainer recovery, magazine storage. It has
characteristics that allow for easy handling as it is a lightweight weapon of just
1.050 gr with 13 cartridges in the magazine. This weapon can only be manufactured
according to international agreements, in neutral countries and can be disarmed
only for licensed professionals.
 DEVELOPMENT

Description of the weapon.

The Browning pistol, caliber 9x19, is a semi-automatic weapon, action

simple, in its previous part, surrounding the canyon, there is a prominence or ring
called 'brocal', whose function is to protect the mouth of the cannon from a fall or
blow. At the top front is the 'rounded line'.
Approximately in the middle of the slide (moving part) on the right side, it
observe the "ejection window", which allows you to see the numbers of the weapon (that
repeat in the canyon)

On both sides of the back of the slide, the 'segrinado' is noticeable.

which makes it easier to take the same and activate it backwards (23 stripes). At the same height
from the lateral sliding rail, but at the top, the "wedge" is observed.
"institutional." At the top rear of the slide is located the "rear sight"
in a U shape. Behind the slide we observe the "hammer", with a segrinado in
the top (7 stripes) that can be European or Canadian type (tail of
duck).

On the fixed part or frame of the weapon, on the middle left side, there is
the "slide retaining axis bolt" that has the "disassembly notch" and of the same
side, but located further back is the 'guarantor's insurance' that is activated
lifting it. Observing the seating of the slide on the right side we can
observe the 'extractor nail' next to the 'discharge window', we find
also the 'trigger tail' (trigger) protected by the 'trigger guard', in the
in the grip, we can find the "magazine" inside it, the "handles" on its
exterior and higher up the 'magazine catch bump'.

This weapon can, according to international agreements, only be

manufactured in neutral countries, such as Belgium at the 'Fabrique Nationale (FN)' factory
from Herstal in that country. Currently, some of the users manufacture it.
weapons under license, as happens in Argentina -specifically in the Factory
Military Fray L. Beltrán of Portable Arms-, but the pistol has suffered continuous
modifications.

In our country, the original Belgian design was largely maintained.

Indonesia has stopped using tangent ramps. In Hungary, it is manufactured in two.
variants: one, the PR 9 with a steel frame, and the PR 9 A, in lightweight alloy. It
they have also added a double-action mechanism and a safety latch
mounted on the slide, which serves to block the firing pin.

In recent years, it must be admitted that its characteristics and design

they are far from those that their modern competitors possess, the fact that it
being kept in service in so many countries demonstrates its reliability as a military weapon.
Specifically, it can be stated that it is a precise weapon, easy to learn.

This weapon can only be assembled and disassembled by professionals, the

Disassembly by an inexperienced person could cause its failure,
what could lead to a possibly fatal accident for the user who uses it because
It would be a crime to advance to this weapon without a license that
certify the dismantler as a professional.

Characteristics of the Browning 9mm

Technical characteristics of the pistol

Caliber: 9 mm.
Total length of the weapon: 197 mm.
Length of the barrel: 118 mm.
Length of the threaded part of the barrel: 110 mm.
Height of the weapon without grips and with magazine: 127.5 mm.
Width of the weapon with grips: 36 mm.
Number of stripes: 6.
Direction of the stretch marks: Right.
Step of the grooves: 250 mm.
Weight of the weapon with empty magazine: 910 grams.
Weight of the weapon with a full magazine (13 cartridges): 1,050 grams.

Cartridge

Caliber: 9 mm. Parabellum.

Length of the cartridge: 29.2 mm.
Length of the armor-piercing projectile: 15.25 mm.
Weight of the cartridge: 12.10 grams.
 Weight of the smokeless powder charge: 0.40 grams.
Weight of the bullet: 8 grams.
Section density: 12.6 gr./cm².

Ballistic data

Initial speed: 350 m/s.

Speed at 12.50 m: 340 m/s.
Live force in the mouth: 50 kgm.
Maximum pressure: Less than 2,500kg/cm².
Effective range: 70 m.
Maximum range: 2,000 meters.

Components of the weapon

Sliding door
Elongated metal piece referred to as the movable part of the weapon, in which part
the aiming devices are located above and house the cannon inside,
recovery spring of the slide and guide of the recovery spring of the slide.
It has grooves on its lower internal walls through which the...
frame guides. On the lower left side, the slider has three recesses:
a cut where the strap gets stuck by the retaining pin of the slide axle
the last shot is fired (leaving the magazine empty)

Frame
Metal piece in the shape of a "T" known as the fixed part of the weapon that presents
the following details: at its upper middle and rear it has the guides
where the slider glides. Immediately below the middle guides
There is a hole where the slide retaining pin is located and on the side.
left more back, a notch that houses the rear arm of the pin axis
slide stop. In the internal middle part of the frame, the stop is noticeable.
yoke, in the upper posterior sector we have the ejector and in the same sector
In the central part, we see the guarantor with its tooth located on the front right.
of the same.
 At the back is the hammer with its notch.
of security and its assembly notch. On the rear left side is located the
safety lever that is activated upwards, only if the hammer is
mounted or in the first break. On the front inner part of the housing of
the warehouse is where the charger safety is located, which when pressed will force the
disconnector to adopt the appropriate position to operate the rocker. At the part
at the back of the loading dock, we see the actual spring that provides
tension to the lever and immediately behind it the hammer spring, The real spring
it is anchored at its inner lower rear part of the charger housing.

For its part, the hammer spring is anchored in a notch located at the
inner posterior middle part of the grip. Behind the trigger guard and
on the left side of the grip guard, we find the retaining pin
of the charger that, when pressed, slides transversely from left to
right by sliding a tooth that locks in a notch made for that purpose in
the loading warehouse. On the sides of the grip, the handles are observed
made of plastic held by screws.

Canyon
Its front part is cylindrical, increasing its section at the back.
In the upper middle sector, we find the bumps and dips where it is cut off.
cannon with the slide. Immediately afterwards we find the chamber
observing on its upper rear a projection that fits into a recess
practiced for this purpose on the slope of the channel, in its lower part
we observe the access ramp, which allows for the proper feeding of
cartridge to bullet. Inside the chamber, we observe the step where it makes
close the mouth of the sleeve when inserting the cartridge.

At the lower back of the cannon, we see the anvil with the groove.
oblique that allows the locking and unlocking of the weapon and that works in the
support of the anvil that we saw in the frame and on the front face of the anvil
See the accommodation of the recovery spring guide, internally the ...
six right-handed grooves. The barrel is made of steel-vanadium.

Recovery spring
This spiral spring with 32 turns allows for the recovery of the
slider and acts around a cylinder called 'Spring Guide'
"recoverer" or "Spike". One end of the spring is slightly more
tight to perfectly fit the guide. Internally, the guide has a
spiral spring enclosed at both ends by a metal ball. The
the head of the recovery spring guide rests on the front face of the
yoke and has a ring through which the slide pin shaft is inserted,
ensuring that the metal ball of the guide's head fits into a recess of the
pin axle slide seal.

Screw axis seal of the slide

It is a cylindrical metal piece with two arms in the shape of a 'T'.
acts by stopping the recoil and holding the slide. In the cylindrical part
we observe a recess where the described metal ball fits and at the end of
this cylindrical part has a nipple that can be used to slide the
fixing plate of the striking needle. The rear arm of the retaining pin.
It presents a protrusion that, when activated by the cartridge elevator of the
the storage charger (once empty) will cause the retaining pin of
the slide rails remain, leaving the weapon open.

Loader warehouse
It is a pocket type, metallic with two fins on its upper part.
called lips, with the appropriate spacing to hold the cartridges in
natural position, those that fit inside the magazine in double row
alternating or in disarray. On the right side wall, the charger presents a
groove or hole where the magazine retaining clip acts. Internally we observe
at the top the cartridge lift, irregular piece of plastic material
at the bottom has two protrusions where the spring rests
spiral elevator.

The bottom part of the loading dock is closed off by a metal plate.
that slides back and forth thanks to a rim at the lower end of the
charger. The plate is fixed in place by an internal clip with a protrusion.
that fits into a hole made for that purpose in the previously described plate.
it has a protrusion at its front end that makes it easy to remove the magazine
charger from your accommodation.
 Weapon insurance

The Browning GP 35 pistol has three safeties, namely:

1) Guarantor's insurance: It acts when it is slid upwards blocking the

movement of the guarantor. It can only be placed with the hammer
mounted or in the position of the first break. Likewise, it locks the
movement of the slide when fitting it into a notch.

2) Charger insurance: It consists of a shoe that is pressed when

insert the charger into its slot which causes the
connector adopt the appropriate position to operate the lever of
guarantor, therefore when removing the loading warehouse the disconnector
moves diagonally forward, thus interrupting the cycle of
shot.

3) First break safety: The hammer has two notches, one

assembly notch and a safety notch that prevents it from
fire a shot in case of a bad maneuver
when mounting the hammer since the sear will be trapped in the notch when it falls
for safety or the first rest before it hits the heel
from the percussion needle.

Primary disarmament

1) Press the magazine release button and remove the magazine.

the cartridge is extracted from the chamber and visually examined then
with three sliding strokes.

Taking the slide firmly by its safety, it is slipped.

backward to its furthest rear position locking it in place
increasing the guarantor's insurance on the reduction provided for that purpose.

Slightly raise the slider axis retaining pin and push it.
from right to left extracting it.
 4) The safety is lowered by releasing the slide and sliding it forward.
until completely extracting it, thus separating the movable part of the weapon from
the fixed part.

5) We turn the slider and slightly compress the spring

recoverer we make unfasten the guide of it from your support in the
the spring of the slide is completely removed and
guide.

The barrel is moved forward and removed from the slide.

Loading and unloading

1) Once the regulatory loader warehouse is completely loaded in the

in the supposed case that the weapon has been left open, it is introduced
and the slide is released by operating its retaining pin axis.

In this way, we have introduced a bullet cartridge into the chamber and the
the weapon is mounted and ready to fire when we activate the
trigger tail.

3) In the hypothetical case that the weapon is found closed once

Once the magazine is inserted, the slide is firmly grasped by its
Shaken and with a vigorous movement, the slider moves towards
back releasing it when hitting the limit (this movement should not be accompanied), from
In this way, the gun is mounted and ready to fire.

4) If you do not wish to fire immediately, you can engage the safety.
guarantor.

5) If you wish to keep the weapon with a round in the chamber, you proceed to
take the hammer firmly and then press the tail of the
trigger, while gently lowering the hammer. In this way, the weapon
is in regulatory conditions for carrying and if desired
Shooting at that moment is enough to mount the hammer and press the trigger.
of the trigger.
 6) If you want to unload the weapon, remove the magazine, and activate the
slide firmly backward thus extracting the cartridge housed in the
chamber. As a safety measure, it is recommended to activate it several times.
times and then check the chamber visually to verify that
it is indeed downloaded.

Firing cycle

With a cartridge in the chamber and the hammer cocked, the trigger is pulled.
trigger overcoming the resistance of its spring, the front part descends
while the latter rises. The "Piano Tail" spring also has
an arm designed to recover the trigger's tail and a rear arm
intended to function as a stop for the disconnector, a piece located in the part
right posterior superior of the trigger, when the mentioned arm rises makes
that the disconnect also rises vertically.

When the disconnect is raised, it activates the rocker or lever of the latch, which due to having
with an axis in its middle part will pivot, raising its front part and
descending its rear part, the rocker connects with the front part
upper right of the guarantor through a tooth that in turn touches a
protuberance similar in the binder (arm tooth).

Thus, the guarantor with a swinging motion descends at its front part and
ascends at its rear overcoming the resistance provided by the spring
releasing its assembly tooth from the assembly notch provided by the hammer,
upon being released, the hammer will violently move forward
the action of its tensile spring and with its impact zone will hit against the heel of the
perforating needle that will move linearly forward
compressing its recovery spring.

With its tip, the striker will hit the detonator capsule, sinking it.
same until it collided with the anvil producing due to that friction the
ignition of it and thus starting a fire that will spread through the o of
the ears to the propellant charge, then the deflagration of the gunpowder occurs
releasing gases that generate pressure in all directions being
counteract circumferentially by the walls of the chamber, the gases
they expand towards the place that offers the least resistance.
In this case, the bullet that comes out of the casing begins its movement towards
in front and now transformed into a projectile, it takes the rifling of the barrel that imparts to it
a gyroscopic movement (rotation) starting outward (translation)
simultaneously. The gases exert an equal but diametrically opposite force.
opposite pressed against the lower part of the sheath and this against the anterior face of the
bolt or backplate causing the slider to move backwards which with
it will mount the hammer on its lower back.

At the same time, the extractor claw that had the pod taken by the throat drags it.
until the left part of the buttock hits the ejector, being ejected out
spinning by the exhaust window, meanwhile the cannon recoils about 5
mm. and because of the inclined shape of the lower notch of the anvil that works on the
support of the existing yoke on the frame descends allowing the
unblocking of the weapon.

Completing its backward movement due to the pressure of the return spring the
the slide returns to its place and in its forward movement the embankment.
will remove the first cartridge presented by the loader magazine, will push it in
direction to the access ramp making it go up by the same, simultaneously the
extractor claw takes the throat of the cartridge that is introduced into the chamber,
for its part, the cannon will rise again and move forward
blocking the chamber and being shut in again at the mercy of the
highs and lows of locking, at this moment the weapon is prepared
to make a new shot resuming the cycle.
 CONCLUSION

The Browning 9mm is a great weapon used in a large number of wars which
demonstrates that it is a weapon of great reliability and effectiveness which we can
highlight the following points:

It has been tested in many wars, making it a very effective weapon.

reliable
It works in different types of environments that other weapons would respond to.
correctly like deserts and arctic areas.
It adapts to situations like falls in water and puddles.
It is a weapon manufactured in neutral countries, which provides the advantage that
warring countries are supplied with supplies for them.
It is a very powerful weapon

For this reason, it is an internationally recognized weapon and even today it

continues using and manufacturing.
 BIBLIOGRAPHY

Browning GP-35. Retrieved January 28, 2013 from

http://en.wikipedia.org/wiki/Browning_GP-35.

Browning pistol caliber 9 mm historical review. Retrieved on January 28

in 2013The provided text is a URL and does not contain any translatable content..
ANNEXES