STEYR STG 77 Tactical Rifle Scope - Advanced Optic Precision

The Steiner STG 77 tactical rifle scope is a factory-integrated optic that brings genuine history to your rifle platform. This 1.5x magnified optic was equipped as standard on the Austrian STG 77 service rifle—one of the first general-issue rifles to ship with a magnified optic from the factory rather than iron sights alone. If you're building or restoring an AUG platform, this factory optic is as close as you can get to the original integrated optic design of the earliest AUG A1 rifles.

The modern Steiner STG 77 optic preserves the original profile, integrated backup iron sights, and weight profile of the classic AUG A1 integrated optic while incorporating practical refinements. The signature "donut" reticle now includes a precision pinpoint center dot for improved accuracy at distance, and the support struts have been reinforced for increased durability under field use. Whether you're after authenticity or proven performance, this optic delivers both.

Installation is straightforward: the optic integrates directly onto the A3 M1 receiver using three 4mm hex head bolts secured with blue thread locker. If you're running a rail-equipped A3 M1 variant, you can swap between factory and rail-mounted versions with minimal effort. It's a modular approach that respects the rifle's original design while allowing you to adapt to your setup.

Key Features

• 1.5x magnification factory-integrated optic for AUG A3 M1 receiver
• Original profile and weight matching classic AUG A1 design
• Integrated backup iron sights built into the optic housing
• Donut reticle with precision center dot for improved aiming accuracy
• Reinforced support struts for enhanced durability
• Tool-free quick-swap capability via three 4mm hex bolts (blue thread locker)
• Compatible with rail-equipped A3 M1 configurations

Specifications

Frequently Asked Questions

What receiver does this optic mount to?

The Steiner STG 77 tactical rifle scope integrates directly onto the A3 M1 receiver. It can also be swapped with rail-mounted versions on rail-equipped A3 M1 rifles using the same three 4mm hex bolts.

Does this optic have backup iron sights?

Yes. The STG 77 optic retains integrated backup iron sights in the original profile, matching the design of the classic AUG A1 integrated optic.

How is it mounted?

The optic attaches to the A3 M1 receiver via three 4mm hex head bolts secured with blue thread locker. The bolts can be removed with minimal force if you need to swap it for a rail-mounted variant.

What reticle does it use?

The optic features a donut reticle with an additional pinpoint center dot, designed for more accurate aiming at range compared to the original donut-only pattern.