Update1.3
Added a weapon mod (synthetic stock) that reduce the weapon weight with 50%, a Pip-boy icon and a custom scope lens.

Update1.2
Fixed the glowing clip and trigger.

Update 1.1
Tweaked a bit in nifscope and changed the texture paths so it should work no matter where you've installed your game.

I remade the Sniper Rifle from Linerunners mod called Classic Fallout Weapons.
Although the form is the same the mesh is not. I made a new low-poly with only 2/3 of the original polycount. The rifle is for sale at the Gunrunners place outside of New Vegas.
My skills in the Geck are low so for now that's the only place you can find/buy it.
There are no mods for this rifle atm but that might change with time.

Big thanks to Gifted for modeling the original mesh since without that I wouldn't have made this mod.
Find the original mod here: http://www.nexusmods.com/fallout3/mods/6381/?
Find Classic Fallout Weapons here: http://www.nexusmods.com/newvegas/mods/37002/?