Steyr STG 77 Optic | 1.5x | AUG A3 M1

The STG 77 optic is a factory-style 1.5x magnified sight designed to reproduce the original AUG A1 integrated optic profile while integrating directly onto the AUG A3 M1 receiver. It retains the original-style backup iron-sights and updates the reticle with a pinpoint center dot inside the classic “Donut” layout. The unit is offered as a direct-fit factory optic for users restoring or building AUG-style platforms and for shooters who prefer a low-magnification, close-to-eye optic for precision work at short to moderate ranges.

Product Specifications

• The optic provides a magnification of 1.5x.
• The reticle is the “Donut” reticle with an added pinpoint center dot.
• The sight is designed to integrate onto the A3 M1 receiver only.
• The unit retains factory-style backup iron-sights consistent with the AUG A1 profile.
• The exterior profile closely reproduces the AUG A1 integrated optic.
• The optic can be removed or swapped using three 4MM hex-head bolts.
• The mounting bolts are secured with blue thread locker but can be removed with minimal force.
• The manufacturer describes the optic as the factory 1.5x optic for A3 M1.
• The manufacturer-provided weight value is 7, with no unit specified in source material.
• The UPC is 088218744963.

This optic is appropriate for collectors and restorers seeking an authentic AUG-style sight and for range use where low-magnification, quick target acquisition and a historic configuration are desired. Its factory-style fit and reticle update make it a straightforward option for projects and shooting sessions that prioritize original appearance with modest optic enhancement.