Lyman Mauser 91 Adjustable Tang Sight Model 57 Smet Black

The Lyman Mauser 91 Adjustable Tang Sight Model 57 is a precision receiver sight built for shooters who value accuracy and reliability on a classic rifle. This tang-mounted sight is purpose-built to deliver the low profile and minimal sight radius loss that made Lyman sights legendary among hunters and target shooters working with pre-1900s and early military actions. If you're restoring or shooting a Mauser 91, this sight puts you back in control of your zero without relying on modern optics.

Tang sights ride close to the receiver, keeping your line of sight as low as possible—a real advantage when you need fast target acquisition or work from field positions. The audible-click adjustment system lets you dial elevation and windage in precise ¼-inch increments, so you can hunt with confidence knowing your adjustments are repeatable. The elevation slide is marked in 3-minute increments, giving you a clear reference for dialing in distances or making quick corrections in the field. Quick-release functionality means you can remove the sight with a button press when you need to clean, maintain, or swap it out—no tools required.

An elevation stop screw built into the design lets you snap back to your zero instantly. This is the kind of practical engineering that made Lyman a trusted name for iron sight shooters, whether you're zeroing at 100 yards or making field adjustments for longer shots. The black finish blends with period-correct rifles and won't catch light in the field.

Key Features

• Receiver-hugging tang mount for minimal line-of-sight height and protrusion
• Audible-click adjustments for repeatable, precise shooting
• ¼-inch click increments for elevation and windage
• Elevation slide marked in 3-minute increments for easy reference
• Quick-release slide design for fast removal and maintenance
• Elevation stop screw for instant return to zero
• Black finish for period-correct appearance and light control

Specifications

Frequently Asked Questions

Is this sight compatible with the Mauser 91?

Yes. The Lyman Model 57 is specifically designed for the Mauser 91 action and mounts directly to the receiver tang.

Can I use this sight if I'm new to iron sights?

The audible-click system and 3-minute increment markings on the elevation slide make it straightforward to dial in your zero and track your adjustments. It's designed for practical field use without complexity.

How do I remove or reinstall the sight?

The quick-release design allows the slide to be removed with a press of a button—no tools needed. The elevation stop screw lets you return to zero instantly after reinstalling.

What adjustment range does this sight offer?

The sight features audible-click adjustments for both elevation and windage in ¼-inch increments. The elevation slide is marked in 3-minute increments to help you track longer-distance zeroes.