Marble Arms .450'' Barrel Mounted 3/32'' 45-W Front Sight Brass White

The Marble Arms .450'' Barrel Mounted 3/32'' 45-W Front Sight in Brass White is a traditional open sight solution for rifles with front sight dovetails cut directly into the barrel. This barrel-mounted front sight carries Marble Arms' legacy of precision-made iron sights, combining classic styling with practical reliability for shooters who prefer mechanical aiming without optics or as a backup to scoped setups.

Built with a gracefully contoured blade that slopes toward the front, this sight features a white polymer bead measuring 3/32" in diameter—easy to acquire and visible in varied lighting. The 17/32" wide brass base (the "W" designation) is engineered to fit barrels with the standard dovetail cut, and the rounded base sides ensure proper seating in your barrel's dovetail slot. Steel construction with quality bluing provides durability and a traditional appearance that complements classic and modern rifle builds alike.

Whether you're setting up an iron-sight-only rifle, building a truck gun, or adding redundancy to a scoped rifle, this Marble Arms front sight delivers the precision and dependability hunters, sport shooters, and rimfire enthusiasts have trusted for generations. The white bead stands out clearly for quick target acquisition, making it a practical choice for hunting, range work, and tactical applications where a backup sight adds confidence.

Key Features

• Barrel-mounted design fits rifles with front sight dovetail cut directly into barrel
• White polymer bead (3/32" diameter) for clear visibility and quick acquisition
• Gracefully contoured, sloping blade profile
• 17/32" wide brass base ("W" class sight)
• Rounded base sides ensure proper dovetail fit
• Steel construction with blued finish

Specifications

Frequently Asked Questions

Will this sight fit my rifle's barrel?

This barrel-mounted front sight is designed for rifles with a front sight dovetail cut directly into the barrel. The 17/32" wide brass base and rounded sides are engineered to seat securely in a standard barrel dovetail. Verify your rifle has this configuration before ordering.

What's the difference between the white bead and other Marble Arms front sight options?

Marble Arms offers barrel-mounted front sights with different bead materials and finishes: the white polymer bead (this model) provides excellent visibility and is weather-resistant, while other options include Pope's Island Gold and flat-faced gold beads in the same 3/32" diameter. Choose based on your lighting conditions and preference.

Can I use this as a backup sight with my scope?

Yes. Many shooters add Marble Arms iron sights as a mechanical backup to scoped rifles. This front sight pairs with a compatible rear sight to create a complete open-sight picture, giving you a failsafe aiming system if your optic fails or gets damaged.

What's included?

You receive the barrel-mounted front sight assembly with the white polymer bead. Installation requires a dovetail-compatible barrel and basic gunsmithing tools or a qualified gunsmith to ensure proper fitting and zero.