Check out Muzzle brake biscoi 3D model on CGTrader for $14. High-quality mesh by izydor-template.
STL (Stereolithography, filesize: 25.7 MB), OBJ (OBJ, filesize: 25.7 MB), 3DS (3D Studio, filesize: 12.8 MB), STP (STEP, filesize: 25.7 MB), FBX (Autodesk FBX, filesize: 25.7 MB)