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Home | AK-47 Info Center | AK-74 Assault Rifle
AK-47.net: AK-74 Assault Rifle

With permission from:  Ekie and Tantal well known Russian AK history buffs.

 
The Russian AK-74 has been the subject of a continuous improvement program beginning with the first prototypes assembled in the late 1960's and early 1970's. It appears that every few years, some major design changes were made in the production lines, and although some were more or less transitional and individual modifications, many were adopted as part of specific improvement packages, and rifles made in those particular years can be identified as specific subtypes. Some of these subtypes are undocumented, and some are known, but sadly, few details have been elaborated on in either Western or Russian reference works on the subject.

This work is based on a draft originally developed and compiled by Ekie, and without his initial work we wouldn't have got off the ground with it. Much of the information was gathered by Ekie through multiple conversations between him, Malysh and myself over the past several years. It is generally based on research done through our trilateral efforts. ("Well at least I wrote the stuff out rather then being Cryptic about it..hehe" ---Ekie)

Normally, Russian nomenclature is based on designer, receiver material and manufacture, barrel length, type of stock (folding or fixed), and ability to mount night vision devices. Because even a major upgrade is sometimes not considered valid enough to warrant a subtype prefix (as in M16A2), extensive changes were often made without Russian type class changes. In these cases, we have had to create our own.

Each subtype has been judged through the observation of multiple changes that seem to have been made at the same time. In some cases individual changes were made at other time periods, and these have been noted as such due to their significance to the collector. We have tried to concentrate on groups of changes that are strong evidence for an undocumented product improvement program (PIP). Dates of introduction were determine by the actual dates of manufacture of the
rifles themselves, and by cross-checking sources and reference materials, both public and private.

Listed below each subtype is a short list of the most important, defining
production changes, rather than a total description of the rifle, since the
other features of the rifle are basically AK-74 standard and would take more room to properly describe than we have space for here.

The following document is not in any way a comprehensive guide, and much detail needs to be added. A few of the features listed may be hard for the novice to decipher without hands on inspection, while many are known to all who have looked at photos of the many versions.

Although we feel very confident the version printed here has been reviewed and revised adequately to ensure it's basic accuracy, there is room to improve. Any question among ourselves as to the validity of the information, or to the dates of introduction, is noted in the text. Most or all features and modifications have been cross referenced from several sources, including factory manuals, personal inspection of rifles, military journals, interviews, print and video media. We welcome any interested parties to add, correct, or modify any items they feel could be improved on, in an effort to create a database of serial numbers and date codes that will elaborate on principal design refinements in the series. Please e-mail us with any comments or suggestions. ---Tantal

AK-74 PRE-PRODUCTION
(1973-75)




These are most commonly seen in early manuals and museum exhibits. Some features, including the rubberized buttplate and angled trigger guard, saw limited production.
Type A 45 degree gas block, with no lug, similar to the compound curve cast AKM block that came out in 1970
laminated wood, or prototypical Bakelite furniture
straighter angled Bakelite pistol grip
machine finished trigger group, sight base, etc (AKM type stuff)
large, angular trigger guard
tension spring on front of wood buttstock
AKM rear trunnion with standard AKM rivet spacing
Type A solid sided front sight base, now with bayonet lug
Type A top cover, witch is a late AKM receiver cover
Type A brake, with large threaded collar
large rubber coated butt plate
tension spring on rear of hand guard
straight, long lightening cut on laminated buttstock
Bakelite magazine that has the look of wood impregnated plastic, with heavy, grainy marbling wood guards have long finger grooves cut into both top and bottom

AK-74 EARLY PRODUCTION TYPE 1 (1975-1976) app 0 - 500,000 range?
(standardized)





Type B "half moon cuts" muzzle brake
back to standard AKM Bakelite grip
bayonet lug added back to the Type A 45 degree gas block,
back to the standard AKM trigger guard (some examples have been produced with the earlier angled trigger guard, long slot buttstock, thinner rubber coated buttplate, but with all other type 1 features, this could have been one of the as yet unconfirmed 1974-75 production examples, but no dates have been determined on this particular rifle).
Early Bakelite handguards and buttstock are discarded, due to durability
concerns.
tension spring on buttstock is dropped
straight, shorter lightening cut on butt
The following are characteristics of some type 1's, we do not know if these are specific early 1975 features or whether they were put on rifles here and there during the entire first two years (I suspect that they are features of the first year of production)-Ekie:

slant cut lightening groove on stock

smooth cheek comb

AK-74 TYPE 2 (1977-1978) app 500,000 - 1,500,000 range?
(New 90 degree gas port design)





Type B front sight base with lightening indentions on sides, 1977
Type C brake
Type B 90 degree gas block (It was determined that the older 45 degree angled gas port had a bad habit of shearing bullets and was eventually replaced with the distinctive, new design--Tantal), 1977
sharp cheek comb on buttstock, parallel and shorter lightening cut on butt
circular strengthening indention stamped around selector shaft hole on left
side of receiver, 1978
Type B new strengthened AK-74-only rear trunion, with the full length forward rivet replaced with two extended arms to both sides, and two separate, shorter forward rivets, moved farther into the receiver, 1978
steel, ribbed butt plate with no rubber covering, 1978
selector stops "engraved" in the receiver are no longer long AKM pattern, but short "ticks", about 1978

AK-74 TYPE 3 (1979-1981?) app 1,500,000 - 2,500,000 range?
(Afghan War PIP)




Type D "zigzag" muzzle brake replaces the "half moon" style in 1979
Type B "dimpled" AK-74 receiver cover, just above the selector lever on the extension above the thumb catch, this extension does not extend outward as far
New optics plate, copied also by the Germans and Romanians for their AK-74 programs. This plate is not seen on many rifles, and changes the designation to AK-74N, meaning it is capable of mounting night vision devices.
Year prefix goes from four digit to two digit in 1980
Late in run, new type B cast rear sight base with wide, sloping shoulders
Late in run, Type B magazine guide dimple stamping gets a rounded overall contour (less square shouldered look), much less distinct (hard to spot in pictures, shows up different depending on lighting)

This version was placed into production in East Germany, with the later type gas tube lever and rear sight, and with some changes and modifications.

AK-74 TYPE 4 (1982?-1985) app 2,500,000 - 5,000,000 range
(Modernized casting improvements, and the last of the wood)




Type B Carrier, with thicker, beefed up charging handle (flat on the back rather then rounded, and has a thicker "root")
polyamide "plum" 30-round magazines are adopted prior to 1982
Investment cast Type B trigger with fully curved thin trigger, and hollow back, but still has a high trigger hook, introduced in early 1982
range tick marks on sight for elevation no longer go all the way across
Type B extended, vertically ribbed magazine release catch with square end, mid/late 82
Type C "lazy" ribbed cover, where the vertical ribbing more or less "disappears" on the sides, mates up with new larger carrier handle found on the type B carrier, early 1983
Type E two piece muzzle brake, the front gas vent deflection slot are no longer a zigzag pattern, but made semi-circular by the press fitting of a separate internal baffle, 1983
cooling vents seemed to have been dropped from the upper handguard in about 1983 (there are earlier examples of no vent uppers, but they are the exception, and not the norm)
circular strengthening indention stamped around selector shaft hole on right side of receiver changed to a flat sided oval, 1984

The Bulgarian first assembled AK-74 parts kits from IZHMASH and then later began building a early 1983 version of the Russian rifle which is still in production being made with both wood and currently black plastic stocks, and both brakes

AK-74 TYPE 5 (1986-1991) 5,000,000 - 7,000,000 range?
(The plum AK)




Type B ribbed gas tube retaining lever
Type C Magazine guide dimple stamping flats on the inside of receiver are now much more narrow, before 1988
plum plastic furniture formally adopted as the wood was dropped from production
Type B selector stop, the part that is riveted to the receiver with the trigger guard, by 1988
"trigger bump" found on underside of the receiver now on both sides
Type C carrier has the left side carrier lightening cut in opposite direction, with the flat being on the bottom, the curve on the front, and taper removed from gas piston and added to carrier nose. Late a solid piston head design without grooves was introduced by 1989, cheaper to make and easier to clean.
punch pressed barrel attachments are first seen, best described as small indentations partially pressed into the sides of the front sight, gas block, and rear sight base. This attaching style is used in place of traditional drilling/pinning of the barrel assembly parts on the vast majority of military contract rifles.
Initially used a Type E brake, then the Type F brake was used with a smooth collared muzzle brake with longer stabilized collar attachment on the type C front sight base starting in 1987 or so.
The current Type H brake with elongated collar and heavily scalloped transitional step at the beginning of the expansion chamber was introduced in 1989
Type C mag catch was used by 1988
New, streamlined scope base that will not take a PSO
Type B selector lever replaces the older AKM selector
Type C trigger, same as before but now it is solid on the back
Type B recoil spring guide head losses the bevel cuts on the sides by 1988
Lightening counters typically left of the sides of the FSB starting in 1989

AK-74M PRE PRODUCTION (1989-1992)

Someone give me a hand here and give me a picture of one of these.

maroon transitioning to black plastic folding butt, fits the original AKS-74
folding trunion block, and has a solid center hinge attaching point. (earliest prototype stocks had no cheek weld, some had no side groove).
scope base now standard on all new AK-74 rifles
Earliest models equipped with Type C ribbed receiver covers, later versions have smooth Type D covers
Some early examples, publicized by the factory in various arms catalogs, were equipped with type G dual port muzzle brakes, but this was not adopted when the Army formally adopted and type classed the AK-74M standard in 1991.


AK-74M STANDARDIZED (1992-present)
(the black AK-74)




black furniture and matte black magazines
New type B tapered take down lever on the handguard retainer
new, strengthened rear trunnion, with thicker hinges using a slightly larger diameter pivot pin, a new cutout on the folder hinge makes two smaller hinge sections, with a space in the middle where the pivot pin is visible (1992).
Smooth, thicker Type C metal top cover, but with selector lever overhang
new solid rear butt stock catch/button
ink stamp proof on pistol grip not usually found on the side but found in the trigger guard recess
ink stamp proof on the scope base cut out on the butt
Type C carrier, but now the right side carrier lightning cut is done at an angle, leaves more meat on the under side (transitional 92-94)
Army production models are mostly punch pressed, while the export versions (AK-100 series) seem usually have pinned on barrel attachments
So-called "third rivet" used in some production from 1991, and by 1994 appears to be present in all production. The "starter post" or "bump starter," which acts as a bearing surface and helps the bolt unlock, is now a separate part that can be replaced, and not part of the riveted in feed ramp.
Multiple modifications to the standardized optics rail to make it capable of
working with more types of optics occurred between 1988 to the present

Once a feature is noted, it remains in production until an alternate design is again noted. (For example, the pre production AK-74 is noted as having a type A 45 degree gas block, and the gas block is not noted again until type 2 has a type B 90 degree gas block. This means that a type 1 also has type A 45 degree block).

Plum buttstocks:

I observe two types. One has a little hump to the left and right of the receiver tang. Tantal pointed this out to me, the "humped" one is the later one. Here is a pic.



Gas blocks:

Type A Gas block used up thru 1976, very similar to the late cast AKM gas block. Preproduction models frequently lack the grenade launcher lug on the bottom:



Standard Type B AK-74 gas block used from 1977 till today, starting in 1986 or so these are usually punch pressed on rather then pinned on most Russian military contract rifles:



Selectors:

The first selector used was an AKM carry over, the current B selector came out in about 1986 or so. New one on the left, old one on the right, can you see it? Tantal had to break out hand puppets for me to catch on to this one.




Rear sight bases:

Top left is A the old AKM type part, but is not the same part, top right is B a cast part with slopping shoulders (about 1980?) which still used the the A lever, bottom left is a pinned on C with the B lever, bottom right is also a C but this one was punch pressed on:



Recoil Spring Assys:

There are two types of recoil springs assys. The one on the left was a carry over late AKM part. Type B on the right is current, and was introduced by at least 1987.



Top A, bottom B.



Handguard retainers:

I only know of two handguard retainers. Far as I can tell the one on the bottom was used from the get go till about 1990 or so. The one on the top is the current type B and has a tapered lever.



Another view, type A at left, B on right:



Bolt Carriers:

A used from preproduction-1983
B used from about 1983-1986
C used from about 1986 till now

A had a AKM type charging handle. Here is a shot of an A charging handle compared to a B or C. Bottom is A, top is B and C.



Both the A and B had the gas piston on the left, while the right is the longer C piston.



The solid piston head came into use in about 1989 and only with the C carrier.



A and B milling contour on top, and C milling contour on bottom.



Typical "hammer ski" on left (all are about the same), odd variation on the type C carrier on right. Not sure what that is all about. Got that one from Tantal, he describes it as looking like a F117, I agree.



Later type Cs have the right side milled at an angle starting in about 1995 or so as pictured at top, the earlier straight cut on bottom. I really need a straight cut type C, as found in early Saiga rifles, so if you got one you can part with, let me know.



The "root" on the charging handle is thicker on the B and C, and will rub if used on an older top cover. Top is A, bottom B and C.



Front Sight Bases:

A

The first FSB was used from preproduction till 1976. It looks sort of like an AKM FSB:



B

The type B FSB was used from 1977 up till about 1987 or so. It has additional lightening indentations on the sides. Beginning in about 1986 this FSB was usually installed using a press punch rather then being pinned on. Pictured at top.

C

Type C FSB was first the late 80's along with the newer improved brakes, it is still in use. Lightening indentations were usually left off all four sides. It is typically punch pressed on in Russian contract rifles, and pinned on commercial made rifles. The threaded collar section of the FSB is longer then earlier examples. Middle of pictures.

C

Variation of C FSB, It has the lightening contours on the sides, but not front and back, can be pinned or punched on. Bottom of pictures.





Brakes (revised, I took most of the experimental brake out):

A

Found on:

Preproduction rifles

Description of brake:

extra long collar , thin bridge, and thin baffle



B

Found on:

first production, type 1, (know of only one with a C brake)

Description of brake:

med length collar with small sharp angled beveled tapper (collar looks like the classic zigzag), thin bridge and sharp tapered baffle



C

Found on:

the first batch of rifles with 90 degree gas block, type 2 rifle (Tokoi AK-74 and AKS-74)

Description of brake:

classic half moon, easy to spot, the collar is angle beveled in the center or 50/50, thin bridge and sharp tapered baffle



D

Found on:

type 3 rifles

Description:

classic zigzag, med length collar with small sharp angled beveled tapper , thin bridge and sharp tapered baffle



E

Found on type 4 rifles.

Description:

Two piece, has the old zigzag collar, thick baffle plate, and bridges, also used on plum rifles for the first year of so



F

Found on:

type plum 5 rifles

Description:

smooth collar two piece



G

Found on:

preproduction AK-74M plum rifles

Description:

looks to be a H that has the sides of the expansion chamber cut out, so as to give two baffles



H

Found on:

AK-74M brake. Also found on 1989 and later plum AK/AKS-74 rifles.

Description

modern heavy scalped two piece,



Right Side Selector hole pressed reinforcement

A at top and B at bottom. A was more rounded, while B is more of a flat side oval:



Left Side Selector hole pressed reinforcement

Early examples, like the AKM simply had a hole drilled for the selector on the left side. Starting in about 1978 a dimple was pressed in around where the hole was drilled:



Selector Stop

The selector stop riveted to the bottom of the receiver thru the trigger guard has two variants. Type A was a carry over AKM part and is pictured top left, while B introduced in the late 1980's has a bevel in it, pictured at bottom:



Rear trunion

Early AKM carry over part on left, dedicated AK-74 trunion introduced in about 1978 on right:



Mag well dimples

The first rifles had a dimple that was similar to a late AKM but a bit longer. The later dimple, type B had more rounded edges, and the current type C has a much smaller flat in the center, giving it a more rounded overall contour. Top is C, bottom is B:



Mag catches

Type A is carry over AKM part at left. Type B was introduced in 1982, pictured in the middle. The current type C came out in the late 1980's and is pictured at right:



Kinda hard to make out the difference between B and C in the above photo, so here is a different angle with C at the bottom:



Rear sight

Type A on the left and B on the right. Type A looks a lot like the AKM rear sight, but not the same part. Type B is later, and Tantal and I can not agree on a introduction date on this one:


  
 

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