Makarov Chamber Info

mm

I (Original footnote) Hereafter referred to as pistol.

Note that the caliber refers to the 9mm Makarov caliber (9x18 Makarov) and NOT the NATO 9mm, also called 9mm Parabellum, 9mm Luger, and 9x19. The latter caliber should never be fired from a Makarov pistol chambcred in the original 9mm Makarov. For more detailed information, see http://mak aiov.com/maklaq.himl

II (Original footnote) Hereafter rei'err-ad to as cartridges.

Length of the barrel 93 mm

Caliber 9 mm' Number of barrel riflings

Magazine capacity 8 cartridges

Mass of the cartridge 10 g

Mass of the projectile 6.1 g'

Length of the cartridge 25 mm

Muzzle velocity (V.) 315 m/sr

0 Note that the caliber refers to the 9mm Makarov caliber (9x18 Makarov) and NOT the NATO 9mm, also callcd 9mm Parabellum, 9mm Luger, and 9x19. The latter caliber should never be fired from a Makarov pistol chambered in the original 9mm Makarov. For more detailed information, see http: //mak arov.com/mak fa q.html

1 Unit is grams. This is ~ 94 grains. 1033 tt/sec

2. Construction of the pistol

2.1 General

The pistol is simple in construction and handling. It is a self-loading weapon, that reloads automatically after each shot.

The functionality of the weapon is based on the principle of the recoil of a free-floating mass closure3. The breech is reliably closed after delivery of the shot by the action of the recoil spring. The trigger mechanism has an easy and a hard pull. The hard pull (trigger cocking) allows the pistol to be shot without first cooking the hammer.

Shooter safety is accomplished by a reliable manual safety at the left side of the slide. After the safety releases the hammer, the hammer falls into a safe position. The hammer rotates by action of the wide angled end of the hammer spring10 in an angle to the slide (this is also called "decocked hammer"), such that the tip of the sear seats into a safety notch on the hammer. After release of the trigger, the trigger bar is pushed to the rearmost position by the narrow tip of the hammer spring. The disconnector and sear lower and under pressure from the sear spring, the sear is pushed against the hammer; thereby the hammer is automatically secured.

When ordered to shoot, the trigger is activated. Thereby the hammer hits the firing pin. The firing pin pierces11 the primer; thereby the priming charge is ignited. By pressure of the gases created by burning powder, the projectile is pushed out of the barrel. Simultaneously, the slide moves rearward due to the pressure of the powder gases that are acting on the slide via the cartidge base.

During this series of events, the empty shell is pulled from the chamber by the extractor and the recoil spring is compressed. Once the it impacts the ejector, the shell is ejected from the pistol via the ejection port in the slide.

9 This is a reference to an unlocked breech blowback operation, as opposed to a locked brcech recoil system.

1 Refers to the main spring, not the recoil spring. " Although the word "pierces" is used, the firing pin crushes the primer.

The motion of the slide rotates the hammer to its rearmost position and cocks it.

Once the slide has traveled back to impact [with the frame12], the slide begins traveling forward by action of the compressed recoil spring. During the forward motion, the slide pushes the next cartridge from the magazine and guides it into the chamber. The breech is locked by an inertial lock. The pistol is ready for continued firing.

To deliver the next shot, the trigger must be released and then activated again. The firing can be continued in this order of operation until all cartridges have been shot from the magazine. Once the last shot has been fired, the slide is held in the rearmost position by the s^ide lock.

The pistol is composed of the following main parts (Picture 2.1): Frame with barrel and trigger guard,

- Slide, Recoil spring,

Trigger and striker assembly,

- Grip, Slide lock, Magazine.

Accessories include:

Spare magazine. Cleaning kit* , Holster, Lanyard"1.

': This is implied, but the real impact is with the front of the trigger guard.

13 (Original footnote) The cleaning apparatuses are differentiated:

Soviet version - combined cleaning rod GDR version - RG-57.

14 (Original footnote) In place of the braided lanyard, the Soviet manufacture uses a leather lanyard.

Hammer Spring For 9mm
Picture 2.1 Parts of the Pistol

1 - Frame with barrel and trigger guard; 2 - Slide with firing pin, extractor, and safety; 3 - Recoil spring; 4 - Pieces of the Trigger- and Striker assembly; 5 - Grip with grip screw; 6 -Slide lock7 - Magazine

2.2 Frame with Barrel and Trigger Guard

The barrel imparts the projectile direction, rotation, and velocity. There are four grooves cut into the barrel, which run from bottom left to top right15 and give the projectile its rotation about the longitudinal axis. The remaining pieces are the lands. The caliber is measured from land to land. It amounts to 9 mm16. The barrel is subdivided into the chamber and rifled portion. There is a step in the chamber.

At the mouth of the barrel is a widened portion for attachment to the frame as well as a drilled hole for the barrel pin.

At the mouth of the barrel and at the bottom of the chamber is a slanted portion47, which gives the cartridge the required direction into the chamber during feeding.

IS Clockwise.

1,1 The actual bore diameter is 0.363-0.365", which is approximately 9.2 mm.

17 Feed ramp

The outer surface of the barrel is smooth. The recoil spring is pushed onto the barrel.

The barrel is pressed into the barrel sleeve and is held in the frame by the oarrel pin.

Makarov Frame

Picture 2.2 Frame with Barrel and Trigger Guard a - left side; b - right side

1 - Frame; 2 - Barrel; 3 - Barrel sleeve; 4 - Opening for trigger; 5 - Bearing surface for trigger detents; 6 - Half-round slot for connection of trigger bar with trigger; 7 - Bearing for hammer detents; 8 - Slot for slide movement; 9 - Opening for main spring tips; 10 - Cutout for slide lock; 11 - Threaded hole for grip screw; 12 - Cutout for magazine lock; 13 - Attachment point with bearing for trigger guard; 14 - Side openings; 15 - Trigger guard; 16 - End of trigger guard to limit rearward motion of slide; 17 - Opening for upper part of magazine

Picture 2.2 Frame with Barrel and Trigger Guard a - left side; b - right side

1 - Frame; 2 - Barrel; 3 - Barrel sleeve; 4 - Opening for trigger; 5 - Bearing surface for trigger detents; 6 - Half-round slot for connection of trigger bar with trigger; 7 - Bearing for hammer detents; 8 - Slot for slide movement; 9 - Opening for main spring tips; 10 - Cutout for slide lock; 11 - Threaded hole for grip screw; 12 - Cutout for magazine lock; 13 - Attachment point with bearing for trigger guard; 14 - Side openings; 15 - Trigger guard; 16 - End of trigger guard to limit rearward motion of slide; 17 - Opening for upper part of magazine

The Frame connects all parts of the pistol. It is fabricated from a single piece.

In the forward portion are: top - the barrel sleeve, bottom - Opening for trigger and attachment point with bearing for trigger guard.

On the side planes of this opening are the bearings for the trigger rotation pins.

The barrel sleeve has a drilled opening for accepting the barrel at the top and an opening for the top or the trigger at the bottom as well as a half round groove for accepting the front pin of the trigger bar at the right.

In nine rear portion are:

top - bearings for accepting the hammer pivot pins and sear pins as well as grooves for slide movement (the pin bearings for the hammer and the right pin bearing for the sear have cut outs), bottom - Opening for the tips of the hammer spring.

In the middle portion we "ind:

an opening for the top of the magazine, on the left side a cut out for the slide lock.

The grips and hammer spring are attached to the frame. The frame accepts the magazine.

A threaded hole for accepting the grip screw is on the back wall . The threaded hole is reinforced such that the main spring is attached with a spring retention clip.

At the bottom is a cut out for the magazine release. At the front is a bearing arid attachment point for the trigger guard.

The trigger guard prevents unintentional activation of the trigger. At the front of the trigger guard is a reinforced portion that limits the movement of the slide. The trigger guard is held up by a plunger and spring, which are located in the front wall of the frame.

.3 Slide with Firing Pin, Extractor, and Safety

The Slide (Picture 2.3) feeds the cartridge into the chamber, closes the breech, ignites the cartridge, extracts and ejects the shell (cartridge), and cocks the hammer.

On the outside of the slide are the following:

on the top plane are the front sight, a crosswise groove for acceptance of the rear sight, a checkered strap between front and rear sight to avoid reflective glare; on the right side an ejection port, the cutout for the extractor, extractor with spring and plunger; on the left side a cut out for the safety pivot pin, a flat planed area for the safety and a recesses for the positioning of the safety. The safety detent spring grips the recesses and holds the safety at the appropriate position:

upper position = "safe"

lower position - "fire";

on both sides the outer surface is slotted for better grip while retracting the slide;

on the back is a cut out for the the hammer.

On the inside of the slide are:

the cutout for the barrel with recoil spring, the guide rails, a detent to lock the slide open with the slide lock, and the comba.

the cutout for the ejector, the cutout for the disconnector, the cutout for the disconnector when trigger has been pulled;

the ejector and the surface to separate the disconnector from the sear.

Makarov Slide Inside

On the right side of the edge of the slide is a cutout intended for release of the sear from the disconnector when the slide is released via the slide lock and the trigger is pulled.

In the comb is a drilled hole for the firing pin19.

Picture 2.3 Slide

18 The "comb" is the raised area that holds the firing pin and strips cartridges from the magazine. "Firing pin channel a - left side; b - View from bottom

1 - front sight; 2 - rear sight; 3 - ejection port; 4 - cutout for the safety; 5 - grip surface; 6 - cutout for the barrel and recoil spring; 7 - guide rails; 8 - slot for locking the slide with the slide lock; 9 - cutout for the ejector; 10 - the cutout for the disconnector; 11 - the cutout for the disconnector when trigger has been pulled; 12 - ejector; 13 - surface to separate the disconnector from the sear; 14 - cutout for release of the sear from the disconnector when the slide is released via the slide lock and the trigger is pulled; 15 - cutout for the hammer; 16 - comb

The firing pin (Picture 2.4) serves to pierce the primer. At the front is the tip of the firing pin. The firing pin is flattened at the rear so the safety holds the firing pin in the firing pin channel.

The firing pin is machined with a triangular cross section to minimize friction.

Picture 2.4 Firing Pin

Picture 2.4 Firing Pin

The extrac:or (Picture 2.5) pulls the shell (cartridge) out of the chamber and holds it until impact with the ejector. It has an extract.or. claw and a tip. The tip serves as a connection to the slide. At the rear of the tip is a dimple for the extractor pin.

AL the rear of the extractor is a cutout for compression of the extractor pir. ana spring with an object (cleaning rod) during removal of tr.c extractor from the slide.

The extractor pin is reinforced at the tip. The front of the extractor spring (the part with the smaller diameter) rests on this piece. The extractor spring is a compression spring and gives the extractor its spring loading.

Picture 2.5 Extractor

Picture 2.5 Extractor

1 - extractor claw; 2 - tip for connection to the slide; 3 extractor pin; 4 - extractor spring

The safety (Picture 2.6) guarantees safety when handling the pistol.

It consists of the safety lever to switch the safety from the "safe" position to the "fire" position and vice versa, the detent spring to maintain the safety in the selected position, the rotation pin with cutout for lifting the sear and to release the cocked hammer when the safety is rotated to the "safe" position, the surface to lock the slide when in the "safe" position, the claw to lock the hammer when in the "safe" position, the pin that grips the cutout in the slide.

Makarov Pistol Safety

Picture 2.6 Safety

1 - safety lever; 2 - detent spring; 3 - cutout; 4 - surface; 5 -claw; 6 - pin

The rear sight, along with the front sight, is for targeting. It is pressed into the crosswise groove20.

+2 -1

Responses

  • maurizia
    How to open parts of 9mm pistol?
    6 years ago
  • hugo
    Can 9mm makarov be fired in a 9mm luger pistol?
    5 years ago
  • wilma edmonds
    How to unlock and lock safety of 9mm pistol?
    5 years ago

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