Question
Primary weapon of kalki
Answer
As per Śrīmad-Bhāgavatam (Bhāgavata Purāṇa): Skandha 12: Adhyay 2, the primary weapon of Lord Kalki would be a sword (असि) and his vahana wold be a horse named Devadatta:
अश्वमाशुगमारुह्य देवदत्तं जगत्पति: ।
असिनासाधुदमनमष्टैश्वर्यगुणान्वित: ॥ १९ ॥
Lord Kalki, the Lord of the universe, will mount His swift horse Devadatta and, sword in hand, travel over the earth exhibiting His eight mystic opulences and eight special qualities of Godhead.
Note: “The question: Primary weapon of kalki” is licensed by Stack Exchange Inc (https://hinduism.stackexchange.com/); user contributions licensed under CC BY-SA.