3D线框风格步枪模型

3D线框风格的步枪模型，侧面视角，带有瞄准镜和弹匣，枪身侧面下方有一发子弹。纯灰色背景，灰色网格线框渲染，无材质贴图，清晰展示枪械机械结构，工业设计风格，横版宽幅构图。

3D wireframe style rifle model, side view, with a scope and magazine, a single bullet below the rifle body. Pure gray background, gray wireframe rendering, no textures, clearly showing mechanical structure of the firearm, industrial design style, horizontal wide composition.