The Vault

PB Silenced Pistol

We’re pleased to have another guest article for you today, this time by Russian author Maxim Popenker (you may recognize him from his encyclopedic web site of firearms, world.guns.ru). He got his hands on a silenced Russia PB pistol, something we have very little chance of seeing over here in the US, and offered us this writeup:

Guns of the Spetsnaz – 9mm PB silenced pistol

by Maxim Popenker

PB pistol compared to standard Makarov PM pistol

PB pistol compared to standard Makarov PM pistol

Soviet (Red) army and NKVD (Internal affairs) troops began to use silenced weapons during the 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 handloaded by troops; process involved disassembling of the standard round, removing most of the power 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 pointed bullet which ensured longer service life of the rubber baffle used in the Bramit silencer.

Diagram of the entire PB pistol, from 1982-dated Soviet army manual

Diagram of the entire PB pistol, from 1982-dated Soviet army manual

For some period after the WW2 the silenced weaponry disappeared from the Soviet military scene, as the minds were mostly occupied with stuff like nuclear bombs and missiles. However, appearance of the NATO tactical nuclear missiles, which were located in Europe and aimed at 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 in 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.

Diagram of the PB pistol showing its return spring arrangement, from  same1982-dated Soviet army manual

Diagram of the PB pistol showing its return spring arrangement, from same1982-dated Soviet army manual

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 9×18 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 which 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 sound signature in this case will be more significant, of course.

PB pistol with front part of the silencer removed compared to standard Makarov PM pistol

PB pistol with front part of the silencer removed compared to standard Makarov PM pistol

The latch for 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 rear part of the silencer, that surrounds the ported barrel, is removed only for maintenance and inspection, and for safety reasons pistol cannot be fired with the rear part of the silencer removed. Use of an integral silencer resulted in a short 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 pistol. PB grips were usually made from brown-red plastic and featured checkered surfaces with diamond-shaped symbol in the middle that replaced standard star of the PM grips.

PB pistol with grip panel removed to show the return spring inside the grip panels and the rocking lever which connects the slide and return spring

PB pistol with grip panel removed to show the return spring inside the grip panels and the rocking lever which connects the slide and return spring

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. PM-type cleaning rod was attached to the outside of the holster by two leather loops.

Russian PB silenced pistol in holster

PB pistol in standard issue holster – note pockets for silencer and spare magazine

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

Technical Data

Trigger type: Double/single action
Caliber/ammunition used: 9x18mm Makarov
Weight, empty: 970g (34 oz)
Length, fully assembled: 310mm (12.2 in)
Length, front silencer removed: 170mm (6.7 in)
Barrel length: 105mm (4.1 in)
Magazine capacity: 8 rounds

Firing the PB
I had the chance to fire PB at a military facility in Russia, and found the experience quite enjoyable. The report of the gun, when fully assembled, is somewhat similar to the sound of the average 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 standard Makarov pistol, probably because of better (larger) sights and 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 elements and strapped to the body, but requires some time to assemble the gun for action. I know 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. I also heard about some hand-made shoulder holsters for PB, which allowed to carry assembled gun in vertical position, with muzzle down, although newer saw any of them.

Author firing PB pistol

Author firing PB pistol

Want to see more of Max’s work? He has several print books available for sale, including:

Assault Rifle: The Development of the Modern Military Rifle and its Ammunition
Machine Gun: The Development of the Machine Gun from the Nineteenth Century to the Present Day
Modern Combat Pistols: The Development of Semi-automatic Pistols for Military and Police Service Since 1945
and
Sub-Machine Gun: The Development of Sub-Machine Guns and their Ammunition from World War 1 to the Present Day (we also have a video review of this one)

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