@Johny_Baba
Ok, so as of now this is all that I have. May be
@Bhumihar or
@Holy Triad can add more.
*The designations I'm using are all made up by me, not official*
1. Mk-I
This is the first iteration they made and probably the only one that shoots. Why, coz despite having further iteration it's Mk-I that went for NSG trials. It's the best thing they have.
1. 3rd party suppressor.
2. Non-fluted barrel. And this is important.
3. Standard Harris bipod.
4. Though claimed in-house, 3rd party optics.
5. Aftermarket Remington 700 LA pattern action.
6. Because of point 5, standard Remington 700 pattern aftermarket trigger group.
7. MDT pistol grip.
8. MDT LSS XL Gen-2 folding stock.
9. MDT magazine.
9. Probably in-house developed chassis or may be I'm not aware about the OEM.
2. Mk-II
So this is where things start getting sketchy.
1. MDT muzzle brake.
2. A fluted barrel that for many reasons look very "un-barrel-ish".
3. Deadline Action from Ultimatum Precision.
4. MDT magazine.
5. Remington pattern trigger.
6. MDT pistol grip.
7. In-house manufactured buttstock, which is actually copied from MDT's "Skeleton Fixed Buttstock". Result, the rifle now has an unfoldable buttstock.
8. Again same chassis from Mk-I.
3. Mk-III
The latest iteration and probably the flagship. In short, slightly more indigenous but also the worst of all three. As much as they apply their own innovation, the rifle gets more and more ruined. Something very OFBish.
1. MDT muzzle brake.
2. Same "un-barrel-ish" barrel.
3. Atlas bipod.
4. MDT magazine.
6. MDT pistol grip.
7. Either a Barrett MRAD type upper receiver- lower receiver arrangement, where the bolt rides inside a aluminium upper instead of a separate action. Or may be a stock Deadline action hidden under upper receiver.
But whatever the case is, it's very poorly made. By the finish of action and bolt it's most probably a exhibition piece, and they are yet to achieve successful operational functionality.
8. Again an in-house made and to be frank a very crudely made buttstock. Modelled after the initial Barrett MRAD stock, this one lacks foldability. Also it's so crude you can see those cheek piece adjustment knobs makes it impossible to get a proper cheek weld.