that is badass

all these concept guns and no one uses caseless ammunition

Hey man, I practiced 3D modeling with your awesome concept, 
Here it is, hope you like it.

Marvelous. I instantly added it to my favourites.

cool, i like the idea of a compact sniper rifle! added to fav

Solid design!

These I would call Great Whites or S.H.A.R.K.s

Uh the barrel is too short, it's more like a bullpup style assault rifle.

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Looks more like an assault rifle to me but I suppose one could use it as a DMR. Though methinks the reason why it looks more like an assault rifle to me is because it reminds me of the F2000 and the Tar-21. 

This is fantastic, do you mind if I 3d model it?

awesome!
one thing though! the barrel is way too short for a sniper rifle...looks like a bad ass shotgun though...

Really cool, except unless you were a lefty, you would get a piece of metal "in yo' face" otherwise, it's awesome 

Nice Work! what is the caliber?

AWESOME!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Kinda reminds me of the Assault rifles from Ghost in the Shell
Looking really great as well!

Awesome

Shiny futuristic Sniper Rifle? You win.

Nice concept, but do you happen to have any idea of the internals that'd be used to make a design somewhat functional?

Awesome I love gun design

Hi.

Love all the artwork of yours I've seen on here.

Do you mind if I model this?

I plan to make it to game rez specs. I'll credit you and everything of course.

I sent you a note, but I figure alot of people don't read em and I was better off asking here.

This is most definitely an assault rifle, battle rifle, or carbine.

Interesting. looks more like it fits in the assault rifle or battle rifle category.
Changing scope might make it fit the category better
and the ironsight might be slightly redundant, considering that the designation 'sniper rifle' would normally always rely on high powered scope.

Also small functional problem
You either need to move the magazine slightly more forward, or make more room behind the magazine. otherwise, the bolt carrier doesn't have any room to cycle the round

other than that, beautifully rendered