Marble Arms Rifle Uni-Ramp Front Sight .470 Fiber Optic Orange
$20.99
The Marble Arms Rifle Uni-Ramp Front Sight .470 with fiber optic orange rod is a straightforward, rugged upgrade for hunters and shooters running rifles, shotguns, and muzzleloaders with screw-mounted front sights. Unlike aftermarket sights that demand gunsmithing or permanent modification, this single-piece sight body installs with one screw and can be swapped out just as easily—ideal if you're testing different optics or need a quick backup. The integrated fiber optic rod soaks up ambient light and glows bright orange, giving you a fast sight picture in low-light hunting conditions without batteries or electronics to fail in the field.
Marble Arms engineered this sight around simplicity and reliability. The polished blue finish matches most barrels and reduces glint, while the one-piece construction eliminates loose parts and weak joints. The fiber optic rod measures ¾ inch long with a .050 inch outside diameter—substantial enough to catch light reliably but fine enough to preserve sight radius and target visibility at distance. Because Marble Arms offers this model in different blade heights and barrel contours, there's a solid chance one configuration will fit your rifle or shotgun without custom fitting.
Whether you're upgrading an older hunting rifle, building a shotgun slug gun, or setting up a muzzleloader for fall season, this is the kind of no-nonsense sight that works the way it should: fast to install, forgiving in dim light, and tough enough to handle a season of hard use.
Key Features
- Integrated ¾-inch fiber optic rod (orange) for fast target acquisition in low light
- One-piece sight body—no loose components, simpler assembly
- Single-screw mounting on rifles, shotguns, and muzzleloaders with screw-held front sights
- Quick replacement or swap without gunsmithing
- Polished blue finish blends with barrel and resists glint
- Available in multiple blade heights and barrel contours for broad firearm compatibility
Specifications
| Brand | Marble Arms |
| Product Type | Rifle Front Sight |
| Sight Style | Uni-Ramp |
| Fiber Optic Rod Length | ¾ inch |
| Fiber Optic Rod Diameter (OD) | .050 inch |
| Fiber Optic Color | Orange |
| Mounting | Single screw (for screw-held front sights) |
| Finish | Polished blue |
| Compatible Firearms | Rifles, shotguns, muzzleloaders (screw-mounted front sights) |
Frequently Asked Questions
Will this front sight fit my rifle or shotgun?
This sight is designed for firearms with screw-held front sights. Marble Arms offers the Uni-Ramp in multiple blade heights and barrel contours to cover most common applications, but you'll want to verify your specific firearm's sight mount style and dimensions before ordering. If you're unsure, reach out to our team with your make and model.
How bright is the fiber optic rod in low light?
The orange fiber optic rod collects ambient light to produce a glowing sight picture—no batteries required. It performs well under typical hunting conditions (dawn, dusk, overcast, timber), but performance depends on available light. In complete darkness, it won't glow.
Can I replace this sight myself?
Yes. The single-screw mounting means you can remove and reinstall the sight with basic tools in minutes, making it easy to swap out if needed or test different sight configurations.
What finish does this sight have?
The Marble Arms Uni-Ramp features a polished blue finish that matches most barrel bluing and reduces unwanted light reflection.
