यन्त्रगोष्पणमुष्टिपाषाणरोचनीदृषदश्चाश्मायुधानि ॥ कZ_०२.१८.१५ ॥
yantragoṣpaṇamuṣṭipāṣāṇarocanīdṛṣadaś cāśmāyudhāni
Stone-weapons (aśmāyudhāni) include engine-propelled stones, sling-stones, fist-stones, and whetstone-like/flat stones used as missiles.
They are cheap, locally available, and scalable—critical for prolonged sieges and for arming garrisons without draining high-value metal stocks.