These are MaxRounds Powermag 650 20 round drums that we import from the Czech Republic for the Vepr 12.
They weigh 1.54 lb.
Have a capacity of 20 rounds.
They are made of high-end hardened dural, the inner parts are made of stainless steel.
They are manufactured on high end CNC machines from a company that makes aircraft and auto parts.
YES, They are expensive. They are also smaller and lighter than anything on the market in the US and are more reliable and easier to adjust than anything on the market at this time. And they can be used in the Saigas without MagWells if the towers are changed on the drums.
If you own any of our custom guns than these are a perfect match and have the same degree of quality.

Do not confuse these drums with a copy made in the states that has had numerous issues and complaints.

These drums can be easily adjusted for the type of ammo being used in seconds.
They are very fast and can easily keep up with the gun and shooter.
You can use any type of ammunition, which does not exceed a length of 65mm and is not shorter than 58mm, in packaged form.
The optimum cartridge load is around 32-36g, some Saigas and Veprs also work with 24g, but it is about the gun you have. If it is one of our custom guns then you are good to go.
These drums come with a set of adjustment wrenches to adjust tension in the drum for various types of ammo and different guns if necessary. They also come with instructions, and a belt clip should you wish to carry multiple drums.

The Vepr12 does vary in the width of the MagWell and some guns need to have the drum adjusted to fit those guns where the Magwell is too tight. There are a couple of ways to do this and we will do the adjusting if you are buying a gun from us at the same time or help advise you how to do it if you already have a gun and need to adjust the drums.
If you also own a Saiga 12ga. you can change the mag tower on the drum to a Saiga tower so that the drum can be used in the Saiga. Both towers come with the drum.
If you only have a Saiga12 please see our other listing for the same drum already setup for a Saiga and at a cheaper price.
We will not ship these drums to a state that limits your mag capacity to a figure lower than these drums. Know what your limits are before bidding.