# Upgrading Weapons Upgrading a weapon is a big deal! Weapons will turn your defense and attack into a much stronger army. These [upgrade NFTs](/chapter-1-farm-wars-the-game-structure/the-farm-wars-nfts.md) will be available when the farm advances in levels and are only available for players at a specific time for a particular duration. If a player decides not to use the available mint upgrade, the upgrade will become unavailable to the player after some time. All upgrade NFTs can be listed and sold on the secondary market. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.thefarmwars.com/chapter-5-the-farm-wars-game-mechanics/upgrading-the-farm/upgrading-weapons.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.