Lyman 20 MJT Globe Front Sight

• Solid steel globe body: Machined from a single piece of steel, this front sight offers the rigidity and durability needed for repeated range use and consistent alignment on target rifles.
• 7/8” diameter globe: The large globe gives a clear, well-defined sight picture that helps center inserts precisely, which is especially useful for deliberate target shooting.
• 3/8” dovetail mounting: Designed for a common barrel dovetail format, the sight fits many rifles set up for target-style iron sights and keeps installation straightforward.
• Seven Anschutz size steel apertures included: The supplied insert set gives the shooter multiple sight-picture options, making it easier to match the front sight to lighting conditions, target size, and shooting discipline.
• .700” sight height to aperture center: This height is intended to pair properly with target rear sights, helping maintain a usable sight line on rifles built for precision iron-sight shooting.

About the 20 MJT Series

The Lyman 20 MJT Series belongs to the company’s long-running line of target front sights for shooters who prefer precise iron-sight setups over optical sights. Built around a 7/8” globe format, the series is intended for match rifles, training rifles, and traditional target rifles that use a front globe together with a receiver sight. Its design focuses on a clean, repeatable sight picture rather than speed, making it well suited to slow-fire target work, prone shooting, and other disciplines where exact alignment matters.

A defining trait of the series is its use of Anschutz size inserts, which gives shooters access to familiar aperture and post styles for different targets and lighting conditions. The steel construction reflects Lyman’s traditional approach to sight making: durable materials, straightforward mounting, and dimensions chosen to work with established rifle-sight standards. Within Lyman’s sight lineup, the 20 MJT series sits as a practical globe-sight option for shooters who want a robust front sight with interchangeable inserts and a target-oriented sight picture.

About the Lyman 20 MJT Globe Front Sight

The Lyman 20 MJT Globe Front Sight is a fixed target front sight made for rifles that use a globe-and-receiver-sight arrangement. Its main advantage is the way it creates a controlled, repeatable front reference for precision shooting. The 7/8” globe surrounds the insert cleanly, helping the eye center the front element with less distraction from the barrel or background. That makes it a strong fit for paper targets, formal target practice, and traditional rifle setups where consistency matters more than rapid acquisition.

This model is machined from one solid piece of steel, which gives it the stiffness needed to hold alignment and stand up to regular use. The 3/8” barrel dovetail mounting pattern suits many rifles set up for iron sights, while the .700” height from the bottom of the dovetail to the aperture center is intended for proper pairing with compatible rear target sights. Because the sight itself is fixed, the shooter can concentrate adjustments at the rear sight while keeping a stable front reference.

The included seven steel inserts are what make this model especially versatile in practice. Different aperture sizes and post options let the shooter tune the sight picture to target size, contrast, and ambient light. A finer insert can help with precise hold on small bullseyes, while a more open option can keep the sight picture from feeling cramped in dimmer conditions. For shooters building a classic target rifle or maintaining a traditional competition setup, this front sight offers a durable and adaptable solution.

About Lyman

The Lyman Gun Sight Company began in 1878 in Middlefield, Connecticut, and the brand remains closely associated with traditional sight design and practical shooting equipment. Lyman Products is headquartered in Middletown, Connecticut, and the company is known for making equipment and accessories for shooting and reloading. Its catalog extends across gun sights, reloading dies, presses, and bullet-casting tools, which gives the brand a broad presence in the shooting market.

In the sight category, Lyman is especially notable for maintaining products that reflect the principles of William Lyman’s original sight design. That heritage is relevant to products such as globe, tang, and receiver sights, where mechanical simplicity and repeatable adjustment remain important. The company later expanded its reach through acquisitions, including the Ideal reloading-tool business in 1925, reinforcing its long-standing role in both shooting accessories and reloading equipment.

Main Features

• Manufacturer: Lyman
• Made in: USA
• Product type: Globe front sight
• Sight adjustment: Fixed
• Rear sight: No rear sight
• Material: Steel
• Color: Black
• Weight: 85.00 g

Warranty

2 years. Lyman states a 2-year warranty for this product, providing defined coverage rather than an open-ended warranty term.

In the Box

• Lyman 20 MJT Globe Front Sight
• Seven Anschutz size steel apertures