military 3D models of weapons, arms, swords and artillery both modern and historical used by military forces and self defence are available for download. You can use models for games or VR/AR content - some of them are polygons optimized and ready to be added to a game engine. Rigged and animated models can ease your work further. You will surely find relevant assets as there are many 3D models available in any file format you might need (FBX, OBJ, MAX, 3DS, C4D, etc.).