Image credit
- Title
- File:PB silent pistol at Tank Biathlon 2014 01.jpg
- Author
- Vitaly V. Kuzmin(attribution required)
- Licence
- CC BY-SA 4.0
- Source
- https://commons.wikimedia.org/wiki/File:PB_silent_pistol_at_Tank_Biathlon_2014_01.jpg
How Muzzle energy is calculated
E = ½ · m · v²
Inputs
- m6.156 g95.00 grverifiedsourcePublished as 95 gr; 1 gr = 0.06479891 g exactly.
- v319 m/s1,047 fpsverifiedMeasured with a 97 mm barrel, not this arm's 105 mm. Velocity outside the sourced range is not projected.
1 of 2 inputs link to their source.
How Muzzle velocity is calculated
nearest sourced barrel length, no extrapolation
Inputs
- v at 97 mm319 m/s1,047 fpsverifiedsourceBallistics table of the cited article.
Assumptions
- This figure belongs to a 97 mm barrel. It is shown because it is the closest measurement that exists, not because it applies here.
1 of 1 inputs link to their source.
How Loaded mass is calculated
m_loaded = m_empty + m_magazine + n · m_cartridge
Not calculated: m_magazine has no sourced figure yet. Nothing is substituted for a missing input.
Assumptions
- One magazine, filled to the stated capacity. Spare magazines, optics, slings and lights are the owner’s, not the arm’s.
2 of 4 inputs link to their source.
How Free recoil is calculated
E_recoil = ½ · m_firearm · v_recoil²
Inputs
- m_firearm0.97 kg2.138 lbverifiedsourceComplete with its integral suppressor, as published on Modern Firearms.
- v_recoil2.024 m/s6.642 fpsestimated
Assumptions
- Propellant gas momentum is excluded: ARMAG does not record charge weights. This is therefore a lower bound on the real free recoil, consistent between entries but smaller than a figure that includes the gas term.
- Free recoil: the arm is unrestrained. Stock design, muzzle devices, stance and shooter mass are not modelled, because none of them is a property of the arm.
1 of 2 inputs link to their source.
How Capacity is calculated
as published for the primary chambering
Inputs
- capacity8verifiedsourceStandard Makarov pistol magazine, as published on Modern Firearms.
1 of 1 inputs link to their source.
Derived figures
Computed from the sourced values above. Open ƒ on any figure for the formula, its inputs, and the assumptions it makes.
How Momentum is calculated
p = m · v
Inputs
- m6.156 g95.00 grverifiedsourcePublished as 95 gr; 1 gr = 0.06479891 g exactly.
- v319 m/s1,047 fpsverifiedMeasured with a 97 mm barrel, not this arm's 105 mm. Velocity outside the sourced range is not projected.
1 of 2 inputs link to their source.
How Sectional density is calculated
SD = mass(gr) / (7000 · diameter(in)²)
Inputs
- mass6.156 g95.00 grverifiedsourcePublished as 95 gr; 1 gr = 0.06479891 g exactly.
- diameter9.27 mm0.3650 inverifiedsourceC.I.P. G1, maximum bullet diameter.
Assumptions
- Reported in the conventional lb/in² so it is directly comparable with published figures.
2 of 2 inputs link to their source.
How Power factor is calculated
PF = mass(gr) · velocity(fps) / 1000
Inputs
- mass6.156 g95.00 grverifiedsourcePublished as 95 gr; 1 gr = 0.06479891 g exactly.
- velocity319 m/s1,047 fpsverifiedMeasured with a 97 mm barrel, not this arm's 105 mm. Velocity outside the sourced range is not projected.
Assumptions
- A competition classification defined by the IPSC and USPSA rulebooks, stated in their units. It describes a scoring category, not an effect.
1 of 2 inputs link to their source.
How Magazine dump is calculated
t = (n − 1) / (rpm / 60)
Not calculated: rpm has no sourced figure yet. Nothing is substituted for a missing input.
Assumptions
- Cyclic rate held for the whole magazine, no stoppages, trigger held down. A theoretical figure for comparing mechanisms, not a measured one.
1 of 2 inputs link to their source.
How Sight error at 1 mm is calculated
θ = atan(misalignment / sight radius)
Not calculated: sight radius has no sourced figure yet. Nothing is substituted for a missing input.
Assumptions
- Shows what a stated aiming error costs. The misalignment is the reader’s figure; the site does not claim how well anyone aims.
No input on this calculation carries a clickable source yet.
Specifications
Every row here is generated from the schema, so a figure recorded on this entry cannot be missing from the table, and the same rows, read the same way, are what the comparison shows.
Identity
- Type
- Pistol
- Action
- Self-loading
- Fire modes
- Semi-automatic
- Operating system
- Blowback, simple
- Roles
- Designed in
- Soviet Union
- Produced in
- Introduced
- 1967
- Production
- not recorded
Dimensions and mass
- Mass, empty
- 0.97 kg2.138 lbsource
Complete with its integral suppressor, as published on Modern Firearms.
- Magazine, empty
- not recorded
- Length
- 310 mm12.20 insource
Complete, as published on Modern Firearms; the same source gives 170 mm with the front part of the suppressor removed.
- Length, folded
- not recorded
- Width
- not recorded
- Height
- not recorded
- Barrel length
- 105 mm4.134 insource
As published on Modern Firearms.
Sights and rifling
- Sight radius
- not recorded
- Sight height over bore
- not recorded
- Rifling twist
- not recorded
- Twist direction
- not recorded
- Grooves
- not recorded
- Sight graduation
- not recorded
Operation
- Cyclic rate
- not recorded
- Trigger pull
- not recorded
- Effective range
- not recorded
- Units produced
- not recorded
- Launch price
- not recorded
Chamberings
- 9×18mm Makarovprimary8 rounds
Scale
A to-scale outline against family siblings. The dimensions are sourced; the shape is a representative outline for the type, and says so.
- PB (pistol)310 mm12.20 inheight not recorded
Representative outline: the dimensions are sourced, the shape is not. Overall length, and barrel length where recorded, are drawn from this entry's own figures; the profile is a generic one for the firearm type and says nothing about this arm's actual contours. PB (pistol) records no height, so its outline is drawn at the type's proportion. That height is part of the shape, not a measurement.
Detail
The PB, formally the Pistolet Besshumnyy (“silent pistol”) and also known by its GRAU index 6P9, is an integrally suppressed, simple-blowback pistol A.A. Deryagin designed on the basis of the Makarov pistol. Its suppressor comes in two parts: the pistol can be carried and fired with only the rear section in place, when it sounds much like an ordinary Makarov, and the front section, carried in a compartment of a purpose-made holster, is fitted before use. Because the suppressor covers the front of the barrel, the slide is too short to hold the return spring, which sits in the grip and acts on the slide through a long lever.
The Izhevsk Mechanical Plant built it from 1967, chambered in the same 9×18mm Makarov cartridge and using the same 8-round magazine as the standard PM service pistol. It armed the KGB and later FSB, Soviet Army reconnaissance troops, and the Russian Airborne Forces, and production continued under the Kalashnikov Concern after Izhevsk Mechanical Plant merged into it in 2013.
Mass, length and barrel length on this page come from the specialist reference site Modern Firearms and are recorded as verified. No manufacturer specification sheet from Kalashnikov Concern’s own current product page was reachable to improve on that. No cyclic rate is recorded, since the pistol is semi-automatic only and no free source states a true mechanical cycling rate for it; Wikipedia’s infobox instead gives a 30-rounds-per-minute figure that reads as a practical, aimed rate of fire rather than a property of the mechanism. No published twist rate was found for this entry.
References
This entry's own bibliography. Every citation key on this page resolves into this list.
- PB (pistol) · Wikipedia · 1364624592 · read 2026-09-24 · CC BY-SA 4.0
- PB (Besshumnyj) pistol · Modern Firearms · read 2026-09-24
Last verified 2026-09-24 · review status: draft