[Home](./index.md) > [bitburner](./bitburner.md) > [Singularity](./bitburner.singularity.md) > [purchaseAugmentation](./bitburner.singularity.purchaseaugmentation.md) ## Singularity.purchaseAugmentation() method If you are not in BitNode-4, then you must have Level 3 of Source-File 4 in order to use this function and the RAM cost is doubled. This function will try to purchase the specified Augmentation through the given Faction. This function will return true if the Augmentation is successfully purchased, and false otherwise. Signature: ```typescript purchaseAugmentation(faction: FactionName, augmnet: AugmentName): boolean; ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | faction | [FactionName](./bitburner.factionname.md) | Name of faction to purchase Augmentation from. | | augmnet | [AugmentName](./bitburner.augmentname.md) | Name of Augmentation to purchase. | Returns: boolean True if the Augmentation is successfully purchased, and false otherwise. ## Remarks Singularity - Level 3