Check out FN M1900 Pistol 3D model on CGTrader for $39. High-quality mesh by Polygate2: 68175 polys, 69396 vertices.
OBJ (OBJ, filesize: 1.64 MB), FBX (Autodesk FBX, filesize: 3.08 MB), MA (Autodesk Maya, filesize: 2.32 MB), MEL (Maya Mel Script, filesize: 2.32 MB), MAX (Autodesk 3ds Max, filesize: 9.14 MB), 3DS (3D Studio, filesize: 248 KB), C4D (Cinema 4D, filesize: 1.56 MB), BLEND (Blender, filesize: 1.42 MB)