@Gautam
This seems to be a representative image rather than an official figure,because the rifle layout does not seem normal.If this was coming from an american manufacturer,I would have still understood given their tendency to innovate,but our guys like to tread on taken paths,something unconventional is not their way(yet).Although in JVPC they did take,but nothing dramatic like this design.
I have read your post regarding MCIWS rifle,though I would agree on most but I would differ on the operating mechanism.As per my observation the initial prototype of MCIWS rifle had a tappet based short stroke operating system.Whereas the later prototype seem to have moved to more traditional piston based short stroke system.
A tappet system differ from the conventional short stroke in a way that it has a cylindrical shaped ,very short piston/tappet with gas sealing ring at front and no return spring,which acts on the operating rod or the extended bolt carrier ,to set the bolt carrier in motion.Since it is such small piece ,which travel a very short distance,it need a lot of pressure to impart the required energy on the operating rod/bolt carrier so that it can cycle normally.Due to this guns with tappet system will have gas block located ,as close to the breech as possible.
Here in the first prototype of mciws you can see that the gas block is 45 degree as well as located quite close to the breech,this is done to ensure that there is enough pressure generated ,to provide the required momentum to the tappet, which can transfer that energy to the bolt carrier for its movement backward.The small gap present also point out to the use of tappet system.
In modern guns scar has a tappet based operating system.
Here is an animation of POF tappet based short stroke piston,which will give you a pretty good idea how it functions.
Now a conventional short stroke piston will have a rod shape long piston ,which will act on the bolt carrier to impart the momentum required to cycle.Compared to tappet this require less energy to set the bolt carrier in motion,hence the gas block is situated further down the barrel .
In later prototype of mciws you can notice that the gas block has been moved further away from the breech and have been changed to 90 degree ,all this will result in lower pressure .This shows that the operating system is no longer based on tappet(which require high pressure) but the traditional short stroke piston(rod shape piston).
P.S It could be a long stroke also,but to me it appear to be a short stroke one.
Regarding AK 200 I got hold of some interesting tidbit,as per someone who was present in the army forum 2019,the day only professionals were allowed.According to him delegation from China,Pakistan and India were showing keen interest in AK 12 and AK 15.He overheard a conversation between the representative of the Kalashnikov and one such delegation,as per it, the representative of Kalashnikov were told by visiting delegation that the accuracy of AK 12 and AK 15 is currently far inferior to the 100 series and more so with the 200 series.To which the representative of the Kalashnikov too admitted that the accuracy is very mediocre compared to the 100th and 200th series.
Here is a sample of accuracy of ak 12 at 100m,when shot by expert marksman.
Ak 12 series is still work in progress.Even though better trigger,muzzle brake ,free floating hand guard and aperture sight should have resulted in better accuracy, but in real world performance it is not so.Basically the sentiment regarding the new AK 12 and AK 15 is not very positive among the Russian gun enthusiast at the moment.There are some other issues as well.
It seem if the option was to choose among 100,200,and 12 the 200th series make the most sense right now.Which is cheaper,more accurate,simple to disassemble.Our representatives have taken the right decision,as far as Russian AK are concerned.
P.s I will be travelling for next few days,so I apologize beforehand ,If I am not able to reply immediately to any query.