Marble Arms .450'' Ramp Mounted 1/16'' 45-Mr Front Sight Brass Gold
The Marble Arms .450" Ramp Mounted 1/16" 45-MR Front Sight in Brass Gold is a classic iron sight built for rifles equipped with barrel ramp bases. If you shoot an older rifle or prefer the reliability and simplicity of open sights, this Marble Arms sight delivers the precision and traditional aesthetics that have made the brand a favorite among hunters and shooters for generations. The gracefully contoured blade slopes toward the front, and the brass gold bead catches light and sight picture naturally in a wide range of hunting conditions.
The 45-MR designation indicates this sight mounts directly onto your rifle's existing ramp base with a .340" wide footprint—a common standard on classic and modern sporting rifles designed for open-sight shooting. The 1/16" diameter brass gold bead provides a fine sight picture suitable for hunting and target work at practical distances. Marble Arms has finished this sight in traditional blued steel, a pairing that complements the character of most rifle builds while resisting corrosion under field use.
Whether you're restoring a vintage rifle, preferring iron sights over optics, or building a backup sight system, this Marble Arms front sight combines proven design with honest craftsmanship. It's made to work reliably and look right on your gun—no frills, no fuss, just solid American sight-making.
Key Features
- Ramp-mounted design fits rifles with barrel ramp bases
- .340" wide base compatible with standard ramp sights
- Contoured blade with brass gold 1/16" bead
- Blued steel construction for durability and classic appearance
- Graceful forward slope for improved sight picture and aesthetics
Specifications
| Mount Type | Ramp Mounted |
| Base Width | .340" |
| Bead Diameter | 1/16" |
| Bead Material & Color | Brass Gold |
| Finish | Blued Steel |
| Model | 45-MR |
Frequently Asked Questions
Will this front sight fit my rifle's ramp base?
The 45-MR is designed for rifles with barrel ramp bases and has a .340" wide base. Check your rifle's front sight mounting area to confirm it accepts ramp-mounted sights of this width.
What bead style does this sight use?
This model features a 1/16" diameter brass gold bead, a classic choice that provides good light reflection and sight picture for hunting and target shooting.
Can I use this as a backup sight with a scope?
Yes, iron sights like this Marble Arms are commonly used as backup or off-hand sights on rifles that also carry optics, though co-witnessing or backup sight rails may require additional consideration depending on your rifle's setup.

