[Home](./index.md) > [bitburner](./bitburner.md) > [Singularity](./bitburner.singularity.md) > [purchaseAugmentation](./bitburner.singularity.purchaseaugmentation.md)
## Singularity.purchaseAugmentation() method
SF4.3 - Purchase an augmentation
Signature:
```typescript
purchaseAugmentation(faction: string, augmentation: string): boolean;
```
## Parameters
| Parameter | Type | Description |
| --- | --- | --- |
| faction | string | Name of faction to purchase Augmentation from. |
| augmentation | string | Name of Augmentation to purchase. |
Returns:
boolean
True if the Augmentation is successfully purchased, and false otherwise.
## Remarks
RAM cost: 5 GB
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.