Marble Arms .410-inch Barrel-Mounted Front Sight, Steel White

The Marble Arms .410-inch Barrel-Mounted Front Sight in steel white (Marble Arms part no. 204132) is a replacement rifle front sight built for shooters restoring or upgrading a classic lever-action or bolt-action barrel. Marble Arms has been supplying sporting rifle sights since the early 1900s and remains a trusted name for drop-in, no-gunsmithing sight replacements. This 41-W pattern bead mounts directly to the barrel post rather than requiring a dovetail cut, so it swaps on with basic hand tools. The steel body and bright white face give a fast, high-contrast sight picture for hunters who need a quick front reference in the field.

Key Specifications

• The bead stands .410 inches tall, matching the factory sight height on many classic lever-action rifle barrels.
• A 3/32-inch blade width keeps the sight picture narrow for precise open-sight aiming.
• The barrel-mounted design attaches directly to the barrel post, so no dovetail cutting is required to install it.
• Its steel construction resists wear and recoil far better than a cast pot-metal sight.
• The white face finish gives a bright, fast sight picture against dark rear sights in low light.

Frequently Asked Questions

Will this sight fit my rifle without gunsmithing? The barrel-mounted design attaches directly to the barrel post rather than a dovetail slot, so no cutting is required, though you should confirm your barrel’s existing sight base matches before ordering.

What does the 41-W designation mean? 41-W is Marble Arms’ own model code identifying this specific bead height and steel white finish combination.

Buy the Marble Arms .410 Barrel-Mounted Front Sight

Order the Marble Arms .410-inch Barrel-Mounted Front Sight from Marble Arms through our rifle parts selection and restore a crisp open sight picture to your lever gun or vintage rifle. Our Lubbock, Texas team can help confirm fitment before you order.