Index GRAU AK-74M is not just a set of letters and numbers, but a key to understanding one of the most widespread and long-lived modifications of the Kalashnikov assault rifle. If you've ever handled this weapon or been interested in its history, you've probably noticed the markings on the receiver. But what exactly does this index mean? Why exactly AK-74M, and not just AK-74? And how has this model managed to remain in service for more than 30 years, despite the emergence of new developments?
In this article we will look at decoding of the GRAU index, the technical nuances that make the AK-74M unique, and why it is still used in hot spots around the world. You will learn how this modification differs from its predecessors, what weaknesses it has and how to identify it by markings. And if you are a collector or just a weapon lover, you will find answers to questions that are rarely covered in standard reviews.
Let's make a reservation right away: index GRAU (Main Missile and Artillery Directorate) is not just a “model number”. This is a classification system that helps to quickly determine the type of weapon, its modification, and even the year it was adopted. In the case of the AK-74M index 6P20 (or 6P20M for export options) tells specialists much more than it might seem at first glance.
What does the GRAU index mean in the AK-74M marking?
Index GRAU is a unique identifier that is assigned to each type of weapon accepted for supply to the Russian army. In the case of AK-74M the official index sounds like 6P20. Let's figure out what's hidden behind these numbers and letters:
First digit "6" denotes a weapon class - small arms and grenade launchers. This is a general category that includes everything from pistols to heavy machine guns. Next letter "P" indicates a subclass - submachine guns and machine guns. Digit "20" - this is the serial number of the model in the GRAU register.
Interestingly, the index may differ for export versions of the AK-74M. For example, for deliveries abroad, labeling is often used 6P20M, where the letter "M" stands for "modified" (usually this is adaptation to NATO standards or local requirements).
But why exactly AK-74M, and not just AK-74? Here lies the key difference: the letter "M" in the model name means "modernized". That is, this is not a new development from scratch, but a deep reworking of the basic AK-74 model to meet modern requirements.
Technical characteristics of the AK-74M: why is it better than the AK-74
At first glance, the AK-74M is not much different from its predecessor, the AK-74. However, it was these “little things” that made it one of the most reliable and versatile machines in the world. Here are the main ones technical improvements:
- 🔹 Receiver materials: used instead of stamped steel impact-resistant plastic fittings, which reduced weight by 300 grams and increased corrosion resistance.
- 🔹 Butt: a folding stock made of fiberglass (instead of wood for the AK-74) allows you to transport the weapon compactly and adapt to the height of the shooter.
- 🔹 Mount for optical sights: standard dovetail strip (Side bracket) allows you to install night vision sights, collimators and other accessories.
- 🔹 Ammo versatility: cartridge compatibility maintained
5.45×39 mm, but the accuracy of fire was improved due to a modified barrel.
However, not everything is so smooth. For example, plastic butt may become loose over time, and sight rail not always compatible with modern standard mounts Picatinny without adapters. However, these shortcomings are more than compensated for by reliability and ease of maintenance.
| Parameter | AK-74 | AK-74M |
|---|---|---|
| Weight without cartridges, kg | 3,3 | 3,0 |
| Length with stock folded, mm | — | 705 |
| Rate of fire, rds/min | 600 | 600–650 |
| Sighting range, m | 1000 | 1000 (with optics up to 1500) |
| Barrel life, thousand shots | 10–15 | 15–20 |
An important nuance: the AK-74M was specially modified for use in extreme conditions - from arctic temperatures to desert heat. This became possible thanks to the replacement of wooden parts with polymers and improved processing of metal parts.
History of creation: why the AK-74M became the standard
Development of the AK-74M began in the late 1980s, when it became clear that the basic model of the AK-74 did not fully meet the requirements of modern warfare. The main problems were:
- 🔸 Weight and dimensions: The wooden butt and massive receiver made the weapon cumbersome.
- 🔸 Limited compatibility with accessories: lack of universal mounts for optics and under-barrel grenade launchers.
- 🔸 Difficulty in maintenance: Wooden parts required regular maintenance, especially in high humidity conditions.
In 1991, the AK-74M was officially adopted by the Soviet Army (and later by the Russian Army). Interestingly, its creation went in parallel with another modification - AK-100, but it was the “emka” that became the main small arms due to the balance of price, reliability and maintainability.
Today, the AK-74M is in service not only in Russia, but also in the CIS countries, Africa and the Middle East. It can be found in the hands of both professional military and rebel groups - isn't this proof of its versatility?
Why is the AK-74M so popular among the rebels?
One of the reasons is the simplicity of design and low cost of production. In addition, 5.45x39 mm cartridges are widely available on the black market, and the machine gun itself can be easily disassembled and repaired in the field without special tools.
How to distinguish the AK-74M from other modifications
If you are holding an AK series assault rifle in your hands, how can you understand what it is? AK-74M, and not AK-74 or AK-12? Here are the key ones visual signs:
- 🔍 Butt: folding, made of black fiberglass (for the AK-74 - wooden or bakelite non-removable).
- 🔍 Handguard: plastic, with a corrugated surface for better grip (for the AK-74 it is wooden).
- 🔍 Optical bracket: on the left side of the receiver there is a rail for mounting sights (the basic AK-74 does not have it).
- 🔍 Marking: there must be a stamp with an index on the receiver
6P20or inscription "AK-74M".
Another reliable way is to weigh the machine. The AK-74M is 300–400 grams lighter than the classic AK-74 due to plastic parts. Also note muzzle brake compensator: The AK-74M has a more aggressive shape for better recoil damping.
⚠️ Attention: There are “hybrids” on the market - AK-74 with a plastic fore-end or folding stock from the AKS-74U. Such modifications are not the original AK-74M and may have reliability problems.
Weaknesses of the AK-74M: what experts criticize
Despite its legendary status, the AK-74M has a number of disadvantages that are often kept silent:
1. Plastic stock Over time, it becomes loose at the point of attachment to the receiver. This is especially noticeable after intensive use or falls.
2. Firing accuracy at long distances (over 400 m) it is inferior to modern assault rifles due to the design of the barrel and the 5.45x39 mm cartridge.
3. Ergonomics leaves much to be desired: there is no length adjustment of the stock, and the pistol grip is not always comfortable for shooters with large hands.
4. Accessory compatibility: The standard dovetail rail will not fit most modern scopes without adapters.
However, these disadvantages pale in comparison to the main advantages: reliability in any conditions and ease of maintenance. As they say, “Kalashnikov does not break - it only gets clogged with sand, but it continues to shoot from under the sand.”
If you are purchasing an AK-74M for a collection, be sure to check for original markings on the receiver and barrel. Counterfeits often have unclear stamps or lack of the GRAU index.
AK-74M in 2026: is it relevant today?
One can argue endlessly about whether the AK-74M is outdated. On the one hand, more modern models like AK-12 and AK-15, which surpass it in ergonomics and accuracy. On the other hand - The AK-74M remains the main assault rifle in the Russian army and is widely used in special operations.
Why is this happening?
- 💰 Economic feasibility: Re-equipping the entire army from scratch is expensive and time-consuming. The AK-74M is cheap to manufacture and repair.
- 🔧 Logistics: Stockpiles of 5.45x39mm ammunition number in the billions, and training soldiers on new weapons takes time.
- 🌍 Versatility: The AK-74M is suitable for any climate, from the Arctic to the jungle.
In 2023–2026, there is a trend towards gradual replacement AK-74M to AK-12, but the process is slow. For example, in units stationed in the Far East, emkas still form the basis of the armament of motorized rifle units.
In addition, the AK-74M remains in demand in export markets. Countries in Africa and the Middle East are actively purchasing these machines because of their simplicity and low price. According to Stockholm Peace Research Institute (SIPRI), in 2022, Russia supplied more than 50 thousand small arms abroad, and the lion’s share of them was the AK-74M.
The AK-74M still remains the most popular assault rifle in the world due to the balance of price, reliability and ease of maintenance. A complete replacement with the AK-12 will take at least 10–15 years.
Where can you legally purchase an AK-74M in 2026?
If you are a collector or an athlete, then the issue of legally purchasing an AK-74M may be relevant. However, there are a number of nuances here:
1. In Russia civilians are prohibited from owning automatic weapons. However, you can buy demilitarized version (with blocked automatic fire) or pneumatic layout for shooting balls.
2. In the USA AK-74M belongs to the category Title II (under the National Firearms Act), which means you need a special permit and pay a $200 tax.
3. In Europe rules vary from country to country. For example, in the Czech Republic or Poland you can legally purchase a semi-automatic version with a license.
The cost of the original AK-74M on the legal market (for example, in the USA) starts from $1500–$2000 for copies in good condition. Demilitarized versions in Russia can be found for 80–150 thousand rubles, but they are not suitable for firing live ammunition.
⚠️ Attention: Purchasing or possessing automatic weapons without the appropriate permits is punishable by law. In Russia, illegal carrying of an AK-74M is punishable under Art. 222 of the Criminal Code of the Russian Federation (up to 8 years of imprisonment).
FAQ: Frequently asked questions about the AK-74M
❓ Why does the AK-74M fire 5.45×39 mm cartridges, and not 7.62×39 mm like the AKM?
Cartridge 5.45×39 mm was designed to improve shooting accuracy and reduce recoil. It is lighter and has a higher muzzle velocity, which improves accuracy at longer ranges. However, its stopping effect is inferior to the “seven”, so in the latest modifications (for example, the AK-15) they returned to the 7.62 mm caliber.
❓ Is it possible to install a Picatinny standard sight on the AK-74M?
Yes, but you will need an adapter for this. Standard dovetail strip is not compatible with Picatinny directly. Popular solutions - adapters from companies Zenitco or Texas Weapon Systems, but they require modification of the receiver.
❓ What is the barrel life of the AK-74M?
According to the manufacturer, the AK-74M barrel is designed for 15–20 thousand shots without a critical decrease in accuracy. However, in practice, this indicator may vary depending on operating conditions and the quality of the cartridges.
❓ How is the AK-74M different from the AK-100?
The AK-100 is a family of assault rifles developed on the basis of the AK-74M, but with improved ergonomics (adjustable stock, Picatinny rail, new handguards). However, the AK-100 was not adopted into service in Russia, while the AK-74M became the main assault rifle.
❓ Is it legal to modify the AK-74M for other cartridges?
In most countries, unauthorized conversion of a weapon to a different caliber is considered an illegal modification and may result in criminal liability. In Russia, such changes are punishable under Art. 223 of the Criminal Code of the Russian Federation (illegal manufacture of weapons).