Is the RPK just an upgraded AK47



The AK series from GHK, which is based on housing parts from LCT, is still considered by far the best in the airsoft scene with a gas system. So it is not surprising when GHK publishes as many different variants as possible based on the same technology. This is exactly how the Russians do it when they recycle parts, as is the case with the real RPK, for example. So the development of a GBB-RPK was only a matter of time ...


Drive type: gas
Energy: 1.5J
Color: Black
Caliber: 6mm
Material: metal / wood
Magazine capacity: 40
Weight: 4400g
Length: 1040mm

scope of delivery

There it is now in an inconspicuous brown box. Inside, the weapon and accessories are held in cardboard disks with matching punched outlines. Simple but effective! In addition to the weapon and magazine, there is also a normal speedloader and of course the instructions in the box.

First impression

The RPK has been dipped very thoroughly in sticky silicone grease or a similar substance. This is supposed to protect them from corrosion during transport by sea, which also worked well. There are no rust spots. But now the weapon must first be cleaned thoroughly. You should make an effort, especially when running, as a lot of dark smear comes to light here.

If you have thoroughly wiped everything down and re-oiled it, a pretty thick block shines at you! The origin of the AK-47 cannot be denied, the longer barrel with a fixed bipod and the slightly differently shaped buttstock still catch the eye.
Practically all metal parts, with the exception of the lock, are made of steel! Then there are the really nicely finished and varnished wooden parts - it couldn't be more real.
Accordingly, the whole weapon looks massive and heavy. The metal parts are still painted, as is the case with the real model. It's a bit more sensitive, but a Kalashnikov without scratches doesn't look really real either ...

The details are also right, embedded in a small flap in the metal plate in the buttstock, behind which an oiler can be inserted on the real weapon. With Airsoft this is not quite so necessary. A working cleaning stick would be more interesting, but it doesn't. On the one hand, it is simply too thick for a 6mm inner barrel, and it is also too short here. And despite a thread at the rear end, it cannot be screwed tight and can therefore easily be lost. If you take the RPK onto the field, you should either stick the cleaning stick on - or just leave it at home.

As always with Soviet weapons, the markings are very spartan here, there is only the lettering of the fire modes and the rear sight. Just like the original.


Basically nothing has changed in the technology compared to the older AKM.
GHK still uses a relatively heavy lock with a long lock carrier that runs back the full distance. The recoil creates a correspondingly high force, while other manufacturers use a shorter recoil and / or lighter materials. This is why there is also a plastic buffer element at the back of the housing, which reduces material wear.

A special feature of GHK is a follower in the magazine, which uses a lever mechanism to catch the breech shortly before its foremost position. So the trigger is still blocked and the weapon works like a real AK, with the bolt also moving forward after the last cartridge. After changing the magazine and reloading, you can shoot again.

The hop-up adjustment takes place via a slewing ring on the hop-up unit made of metal. It works better if you open the gun beforehand. As with a real AK / RPK, all you have to do is press the button on the back of the housing and remove the housing cover upwards. Now the spring and spring guide rod, buffer element and lock can be removed.

The magazine is still its own GHK system, which is roughly based on the Western Arms standard, but is not compatible with other GAS-AKs. After all, I never had leakage problems with GHK magazines.

Shot test

A belt feed, as is the case with western IMGs, was never intended for the RPK. Therefore, the AK magazine with 30 meager rounds is absolutely true to the original. A drum magazine would of course be even nicer.
Even so, the charging process demands a lot from the shooter! Filling with BBS is almost impossible without a speedloader. The opening in the magazine is so narrow that you are almost afraid of breaking the BBs.

When you shoot, you notice the serious recoil, which is softened here by the somewhat heavier weapon. When placed on the bipod, there is only a shake left. Due to the volume, the RPK is still impressive enough.

Due to the open sights, the precision is quite ok. It would be even better with a (Russian) look. But the side mounting rail is missing here. But even with the real model, this is rarely found.

The shot strength is approx. 1.5 joules and is still in the range suitable for games. With heavier balls (0.36g) the precision increases a bit, but you get values ​​of 1.7 joules and more. Too much for some playing fields.

Tuning and accessories

As mentioned above, a drum magazine would of course be the perfect accessory. Maybe Ra-Tech will have mercy and build one. WE has already shown that it works in principle with Luger.

Otherwise you should definitely get an original or true to the original sling. Not only because of the appearance, but also for easier transport. Otherwise, the four and a half kilograms will quickly go into your arms.

When tuning, you can also stock up on the parts for the GHK AKM, since most of the parts are identical. Other grips, "tactical" ABS parts or improved internals also fit the RPK.


For gamers there is finally a Russian lMG in a gas version. This gap in the market was still vacant until the RPK. However, one must be aware that the range of the RPK is no greater than that of an assault rifle. So it serves more style than tactics, apart from the slight advantage of a bipod. Whereby one could also mount such an AK ... The weapon is of course somewhat heavy, but still manageable enough to be able to shoot while moving.

The GHK RPK is of course also interesting for collectors, as the exterior has been based as much as possible on the original. Typical errors such as open BB feeds or gas valves are not found here.

Thus the RPK is a really successful extension of the GHK-AK series. Maybe a little unspectacular, but also without annoying mistakes.


In the late 1950s, the Soviet Union started a program to develop a new IMG. This should replace the RPD ("Ruchnoy Pulemyot Degtyaryova") and contribute to the standardization of weapon systems. That is why a brilliant decision was made decades before the western armed forces: a light machine gun that is not only technically based on an assault rifle and shares many (spare) parts with it, but can also accommodate the magazines. And as with the SVD sniper rifle, not only a few elite fighters, but rather normal companies were equipped with it. Tactically, it was way ahead of the West.
Many well-known developers submitted their designs, but Mikhail Kalashnikov's model based on the AK-47 ultimately won. Only the longer and more massive barrel was changed, which promised higher precision and better functionality in continuous fire. And a fold-out bipod was installed, at the expense of the bayonet mount. The closure is a bit more robust and you have a differently shaped shoulder rest. All other components are practically identical to the assault rifle.
Later there was also a version for the smaller 5,45x39mm cartridge, the RPK-74.
Like the AK-47 and AK-74, the RPK was built in all Warsaw Pact states and exported to many third world countries. Some of it is still in use there today.