Abstract: A self-regeneration ballistic projectile-arrester, suitable for small arms indoor firing ranges comprises granulated material in form of a heap, to absorb the kinetic energy of the fired projectiles. A pair of belts moving in opposite and converging directions, and being inclinable with respect to the firing plane and being spaced from and opposite to one another, are arranged as supports at the bottom of the material heap with their longitudinal axis parallel to the firing axis, for conveying the material towards a zone where it is separated from the exploded projectiles. The regenerated material is then carried onto the top of the heap for recycling.