Hi Everyone. Made this rifle in my free time. I've been waiting to make a rifle for quite some time and found a great concept. For concept the first man comes to my mind is Wouter Kroon. Please check out his gallery 
https://www.artstation.com/artwork/Wg8qE 
The rifle and scope stands together at 14386 Tris and have a 4k and 2k Texture set respectively.