Object Title

Centrefire self-loading deactivated pistol - Makarov PM

Centrefire self-loading deactivated pistol - Makarov PM

Date

made 1975

Object Number

PR.11603

Provenance

Gifted with the Pattern Room by the Ministry of Defence, August 2005

Physical Description

The Makarov PM is a medium-size pistol with a straight blowback action and is of all steel construction with a frame-fixed barrel. In a blowback designs such as this, the only force holding the slide closed is that of the recoil spring wrapped around the barrel; as a consequence upon firing the barrel and slide do not have to unlock. Blowback designs are simple and more accurate than designs using a recoiling, tilting, or articulated barrel, but they are limited practically by the need to have weight in the slide. The 9×18mm cartridge (Russian designation: 57-N-181S) around which this pistol was designed provides enough energy to action the blowback design. The PM is heavy for its size, largely because of the heavy slide which is needed to provide greater inertia to delay the opening of the breech until internal pressures have fallen to a safe level. The Makarov design is widely regarded as particularly well balanced. The slide also has a full- length textured anti-glare strip on the top
In concept the Makarov PM is a very simple pistol, the designer Makarov and his team, during development, drastically simplified the construction of the pistol, improving its reliability and reducing the number of parts to an astonishing 27, not including the magazine.
The chrome-lined, 4-groove, right hand twist, 9.27mm (true calibre) barrel is pressed and pinned to the frame through a precision-machined ring. It has been deactivated by being slotted on the right side for most of its length. There is a 7kg rated recoil spring that wraps around the barrel which also acts as the spring guide.
The front sight is integrally machined into the slide. The fixed rear sight is dovetailed into the slide. The extractor is of an external spring-loaded type. The breech face is deeply recessed in order to improve extraction and ejection reliability, it has been counter bored to be deactivated. The stamped sheet steel slide-lock lever has an internal tail serving the additional purpose of an ejector. The one-piece, wraparound bakelite or later plastic grip is reinforced with steel inserts and has a detent inside the screw bushing preventing unscrewing during firing. There is impressed a 5 pointed star within a circle on each side of the grip. A lanyard ring is affixed on the left side of the grip and also a green stripe has been painted around the centre of the grip.
The sheet-metal mainspring housed inside the grip operates the hammer, the trigger and the disconnector, and its lower end is the heel and spring of the magazine catch. The sear spring also serves a dual purpose by operating the slide-lock lever.
The Model PM has a free-floating triangular shaped firing pin, with no firing pin spring or firing pin block.
Stamped with a British Army deactivation code for 1992.

Techniques

Cast, Forged

Materials

Dimensions

OverallHeight128mm
OverallLength161mm
OverallWeight725g
BarrelLength93.5mm

Firearms/Artillery

Serial Number AX0312

Calibre

9 mm

Inscriptions and Marks

Deactivation mark
36-048/92
left side of the frame and repeated on the left slide
engraved
Serial number
AX0312
on the front left frame
scratched

Associations