STG77 is a standard optic sight for the AUG A1. The sight provides a 1.5x zoom and has an open non-removable ironsights in the upper part of the optics. Manufactured by Swarovski Optik.
| Peacekeeper | $86 |
| Flea Market | ₽10,550 |
| Flea Market | ₽10,000 |
| Jaeger | ₽5,844 |
| Mechanic | ₽5,454 |
| Prapor | ₽4,870 |
| Ref | ₽4,870 |
| Skier | ₽4,772 |
| Fence | ₽2,922 |
| Peacekeeper | $36 |