Dongs is a tyrant

[Vangelis]

I do think the way PersonOfInterest edited it wasn't really right either, however; sure, we've established there isn't enough detail to tell what it is, but that doesn't mean we can declare it was never supposed to be anything as he did [in particular we can't say it specifically isn't supposed to be a bolt-action, given this is a game with a semi-auto pump shotgun]; all we can say is we can't tell what it is and have no concrete evidence it was supposed to be anything. I've re-worded it as:

The "Sniper Rifle" is a silenced semi-automatic sniper rifle with wooden furniture; it bears a passing resemblance to a couple of real-life sniper rifles, but none clearly enough to make a good judgement as to precisely what it was based on. Notably, the midsection is completely undetailled, the weapon having no clear action or magazine location.

Which is about the best we can say until someone from Rare comes in and admits it was based on a Beretta Inox and they stopped putting cactus venom in the vending machines after that day.