Check out Assault heavy machine gun cannon naff barrel blaster laser arms Low-poly 3D model buy 3D model on CGTrader for $35. High-quality mesh by OlegShuldiakov: 441 polys, 584 vertices. Textured, UV Mapped.
OBJ (OBJ, filesize: 119 KB), FBX (Autodesk FBX, filesize: 123 KB), TEXTURES (Textures, filesize: 768 KB), MA (Autodesk Maya, filesize: 143 KB), MAX (Autodesk 3ds Max, filesize: 652 KB)