The most important exhibit at the MOS/Arcturus stand was the AK-12 carbine replica, has been announced a few months ago.
It was presented as the final product, but it is not known exactly when and whether it will go into serial production in this form exactly. While there won't be any changes from the outside, there are still ongoing works on the firing modes. Let us remind You that the real AK-12 shoots with single, full-auto and 3 round burst modes. The LCT's replica shoots only with single and full-auto modes (therefore it lacks the 3 round burst marking in the receiver). MOS/Arcturus approached the issue more ambitiously and in its implementation the AK-12 is also supposed to shoot in bursts (a note here: the electronic solution of the problem was created by one of the Polish manufacturers of drop-in systems and MOSFETs). Yet, some technical problems were not solved until the beginning of December and the at the MOA a replica without a 3 round burst mode has been presented, although with markings on the receiver compatible with the real carbine.
In addition to firing modes, which the manufacturer will certainly deal with, there are several other things that distinguish the replica by Arcturus from the one by LCT. One of them is the receiver cover. In LCT's replica, this part is completely detachable, in Arcturus' it can be lifted up on a hinge.
The second thing is the magazine which, firstly has has variable BB capacity (this solution is already known from other replicas of this manufacturer);
and secondly, the ports for controlling the ammunition capacity are actually do work (in LCT's version, the magazine's housing is made of homogeneous plastic).
You can't really see the BBs, but the magazine does look a bit better overall.
However, in our opinion, the most important distinguishing feature of the Arcturus' AK-12 is the pioneering solution of a literally quick spring replacement system. Arcturus made the first replica in the AK system, in which the spring can be replaced without pulling the gearbox from the receiver.
From the technical side, the last thing to consider is the use of a frame adapted to the EBB system. We don't know when MOS/Arcturus is planning a blowback version, however it is already visible that the first step has been made.
At first glance, but also when picked up, the replica looks perfect. Partly due to the surface finish of all steel parts by using the Tenifer method (QPQ - carbonitriding bath) also used in the defense industry. We hope to see how the replica works and how the mechanism is built soon.
More photos are in the attached gallery.