The Steyr STG 77 was one of the first general-issue service rifles to ship with a magnified optic from the factory, and this replacement optic (Steyr Mannlicher part no. 1252020517) is designed to be virtually identical to the original integrated AUG A1 sight.

Key Specifications

• Magnification: 1.5x (matches the original factory-issue AUG A1 optic)
• Design: replicates the original AUG A1 integrated optic profile
• Includes: retained back-up iron sights, matching the original AUG A1 weight and profile
• Compatibility: fits the A3 M1 receiver only (factory-integrated optic, not a rail-mounted version)
• Installation: secured via three 4mm hex-head bolts with blue threadlocker, removable with minimal force
• Reticle: Donut reticle updated with an added pinpoint center dot for more precise aiming at range
• Durability: support struts reinforced (buttressed) versus the original AUG A1 optic

Frequently Asked Questions

Does this include back-up iron sights? Yes, it retains the back-up iron sight profile of the original AUG A1 integrated optic.

What magnification does it provide? 1.5x, matching the original factory-issue AUG optic.

Is this a modern reproduction or an original-spec optic? It is designed to be virtually identical to the original AUG A1 integrated optic, with a few modern upgrades.

Buy the Steyr STG 77 Factory Optic For Sale

Restoring or building an AUG/STG 77? Shop more Steyr Mannlicher optics, or browse our full gun scopes selection at Schaefer Defense.