Design a futuristic sniper rifle with the following modifications: 1. Change the color scheme to a matte gray with dark green accents. 2. Replace the barrel with a more streamlined, tapered design. 3. Add a digital display on the side for advanced targeting features. 4. Remove any visible branding or model numbers for a generic appearance. 5. Modify the stock to have a more ergonomic shape with a slight curve. Focus on a sleek, high-tech aesthetic.