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Guns of the Spetsnaz: 9mm PB Silenced Pistol
By Maxim Popenker

Soviet (Red) army and NKVD (Internal affairs) troops began to use silenced weapons during WW2. Those weapons included the Mosin M1891/30 rifle and Nagant M1895 revolver, both fitted with Maxim-type quick-detachable silencers known as “Pribor Bramit” (Bramit Device; Bramit was an acronym for Mitin brothers who developed the unit). The M1891/30 rifles were used with special subsonic ammunition (often hand loaded by troops, the process involved disassembling of the standard round, removing most of the powder charge and filling the empty space with some inert filler). Silenced Nagant revolvers were most often used with special ammunition, loaded to standard velocities (which happened to be subsonic) but loaded with a pointed bullet that ensured longer service life of the rubber baffle used in the Bramit silencer.

For some period after WWII, silenced weaponry disappeared from the Soviet military scene, as the minds were mostly occupied with stuff like nuclear bombs and missiles. However, with the appearance of NATO tactical nuclear missiles, which were located in Europe and aimed at the USSR, brought to life an idea of missile killers - elite stealth units capable of infiltration into the enemy territories to strike at missile launchers, C&C posts and ammunition dumps at the moment of “Hour X.” Obviously, such troops, known as “Voiska Spetsialnogo Naznachenija” (special purpose troops) or Spetsnaz for short, required some special weapons to operate in stealth mode, and silenced pistols were on the top of their shopping list.

The integrally silenced PB (Pistolet Beschumnyj - noiseless pistol, official military index 6P9) was introduced in 1967 for use by various Spetsnaz units. Manufacture of the PB pistols was stopped in the mid-eighties, but was resumed about fifteen years later due to constant demand for such specialized weapons. It was, and still is, made at the same factory that makes PM pistols - the Izhevsk Mechanical Plant.

The PB is based on the Makarov PM but heavily modified to accept a semi-integral silencer of unusual design. The pistol is designed to fire standard 9x18 PM ammunition, and to ensure that the velocity of the bullets remains subsonic regardless of the external conditions (i.e. temperature), the barrel has small ports that allow some of propellant gas to escape into the rear part of the silencer. The front part of the silencer can be quickly detached and is mounted onto the rear part by the means of an interrupted thread lock. The front part of the silencer contains three steel baffles that are formed from sheet steel as a single removable unit, and, while the pistol is intended to be fired with both parts of the silencer in place, in emergency situations it also can be safely fired without the front part of the silencer. The latch for the front part of the silencer is located at the front of the frame, just below the rear part of the silencer. The rear part of the silencer is filled with rolled steel mesh, which acts as a heat sink for powder gases. The sound signature in this case will be more significant, of course. The rear part of the silencer, that surrounds the ported barrel, is removed only for maintenance and inspection, and the pistol cannot be fired with the rear part of the silencer removed. The use of an integral silencer resulted in a shorter slide; because of that, the return spring is located inside the plastic grip panel, at its rear, and linked to the slide by the long swinging lever which is located at the right side of the grip frame, under the grip panel. The trigger unit is similar to the one used in the Makarov pistol, with a double-action trigger, an exposed hammer and a slide-mounted safety/decocker. Magazines also are the same as in the Makarov PM. The button located at the base of the trigger guard, on the left side of the grip, is not a magazine release - it is used to remove the grip panels for disassembly and maintenance. The magazine release is located at the base of the grip. Sights are fixed, with drift-adjustable rear blade, and equipped with two-dot luminous inserts (one dot at the rear sight under the notch, one on front sight) for night shooting. Grip panels were of wrap-around U-pattern, similar in shape but not interchangeable with grips of Makarov PM pistols. PB grips were usually made from brown-red plastic and featured checkered surfaces with a diamond-shaped symbol in the middle that replaced the standard star of the PM grips.

PB pistols were issued with special flap-type leather holsters, which had additional compartments for a separated front part of the silencer and a spare magazine. A PM-type cleaning rod was attached to the outside of the holster by two leather loops.

Disassembly for cleaning, inspection and maintenance was similar to the PM pistol, with additional steps to remove and disassemble the silencer and grip panels.

Firing the PB

The author had the chance to fire the PB at one undisclosed military facility in Russia, and found this experience quite enjoyable. The report of the gun, when fired fully assembled, is somewhat similar to the sound of a powerful airgun, except for the relatively loud metallic sound of the slide cycling back and forth. Ear protection is not mandatory when firing the PB. Accuracy in both slow and rapid fire at 25 meters was somewhat better than with the standard Makarov pistol, probably because of better (larger) sights and of more muzzle-heavy balance, which helped to recover from recoil for faster follow-up shots. The standard issue holster is good at keeping the gun protected from the elements and strapped to the body, but requires some time to assemble the gun for action. It is known that some real-life operators simply cut off the bottom of the holster so the gun could be holstered with the silencer attached, if it is required by tactical situation. There are reports about some hand-made shoulder holsters for the PB, which allowed carrying the assembled gun in a vertical position, with muzzle down; although the author has not observed any of these.

Specifications

Trigger type Double / single action
Calibre/ammunition 9x18 PM
Weight, empty 970 g
Length 310 mm assembled. 170 mm w/o detachable part of the silencer
Barrel length 105 mm
Magazine capacity 8 rounds

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