Image credit
- Title
- File:Súng tiểu liên Type 64 (thứ ba từ trái sang) trưng bày tại bảo tàng Quân khu 9.jpg
- Author
- Unknown author(attribution required)
- Licence
- CC BY 4.0
- Source
- https://commons.wikimedia.org/wiki/File:Súng_tiểu_liên_Type_64_(thứ_ba_từ_trái_sang)_trưng_bày_tại_bảo_tàng_Quân_khu_9.jpg
_trưng_bày_tại_bảo_tàng_Quân_khu_9.jpg){kind=link}
How Muzzle energy is calculated
E = ½ · m · v²
Inputs
- m5.5 g84.88 grverifiedsourceBallistics table of the cited article, which publishes bullet mass in grams.
- v469 m/s1,539 fpsverifiedMeasured with a 120 mm barrel, not this arm's 245 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 120 mm469 m/s1,539 fpsverifiedsourceBallistics table of the cited article.
Assumptions
- This figure belongs to a 120 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_firearm3.4 kg7.496 lbestimatedsourceWith an empty 20-round magazine, from the infobox; no inline citation is given there.
- v_recoil0.7587 m/s2.489 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
- capacity30estimatedsourcePublished as a 20- or 30-round detachable box magazine, from the infobox, uncited there. The weapon was designed around a dedicated subsonic 7.62x25mm Type 64 cartridge not carried on this site, but the article states standard 7.62x25mm Tokarev ammunition also functions in it, at the cost of faster wear on its integral suppressor.
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
- m5.5 g84.88 grverifiedsourceBallistics table of the cited article, which publishes bullet mass in grams.
- v469 m/s1,539 fpsverifiedMeasured with a 120 mm barrel, not this arm's 245 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
- mass5.5 g84.88 grverifiedsourceBallistics table of the cited article, which publishes bullet mass in grams.
- diameter7.9 mm0.3110 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
- mass5.5 g84.88 grverifiedsourceBallistics table of the cited article, which publishes bullet mass in grams.
- velocity469 m/s1,539 fpsverifiedMeasured with a 120 mm barrel, not this arm's 245 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)
Inputs
- n30estimatedsourcePublished as a 20- or 30-round detachable box magazine, from the infobox, uncited there. The weapon was designed around a dedicated subsonic 7.62x25mm Type 64 cartridge not carried on this site, but the article states standard 7.62x25mm Tokarev ammunition also functions in it, at the cost of faster wear on its integral suppressor.
- rpm1,000 rpmestimatedsourceWith its dedicated subsonic cartridge, from the infobox, uncited there; the infobox separately gives 1300 rpm with non-dedicated ammunition.
Assumptions
- Cyclic rate held for the whole magazine, no stoppages, trigger held down. A theoretical figure for comparing mechanisms, not a measured one.
2 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
- Submachine gun
- Action
- Self-loading
- Fire modes
- Semi-automatic
- Fully automatic
- Operating system
- Blowback, simple
- Roles
- Designed in
- China
- Produced in
- Introduced
- 1964
- Production
- not recorded
Dimensions and mass
- Mass, empty
With an empty 20-round magazine, from the infobox; no inline citation is given there.
- Magazine, empty
- not recorded
- Length
Stock open, from the infobox, uncited there.
- Length, folded
Stock folded, from the infobox, uncited there.
- Width
- not recorded
- Height
- not recorded
- Barrel length
From the infobox, uncited there.
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
With its dedicated subsonic cartridge, from the infobox, uncited there; the infobox separately gives 1300 rpm with non-dedicated ammunition.
- Trigger pull
- not recorded
- Effective range
- not recorded
- Units produced
- not recorded
- Launch price
- not recorded
Chamberings
- 7.62×25mm Tokarevprimary30 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.
- Type 64 submachine gun860 mm33.86 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. Type 64 submachine gun 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 Type 64 submachine gun is a simple-blowback, open-bolt weapon China’s State Factory 66 developed together with the separate Type 64 suppressed pistol for special-forces and reconnaissance use. Unlike many suppressed firearms that adapt an existing production gun, the Type 64 was designed as a suppressed weapon from the outset, built around a dedicated subsonic cartridge, also called 7.62×25mm Type 64, to keep the action quiet without a supersonic crack from the bullet itself.
It can also fire standard 7.62×25mm Tokarev ammunition, though doing so wears its integral suppressor faster than the subsonic round does. The mechanism is an amalgam of existing designs: the bolt of the PPS submachine gun and the trigger group of the ZB vz. 26, grafted onto an AKS-47-pattern receiver. Some were exported to North Vietnam, where small numbers were issued to armed police as the K64, and Chinese troops used it in the 1979 Sino-Vietnamese War before the Type 85 replaced it in PLA service.
Mass, length, folded length, barrel length and cyclic rate on this page come from Wikipedia’s infobox, which carries no inline citation for any of them, so all are recorded as estimated rather than verified. Its introduction year follows the Chinese arms-naming convention that gives the weapon its “64” designation, rather than a separately documented adoption date. 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.
- Type 64 submachine gun · Wikipedia · 1364970246 · read 2026-09-24 · CC BY-SA 4.0
Last verified 2026-09-24 · review status: draft