Marble Arms Rifle Dovetail Front Ramp .6875'' Id .188'' Black
The Marble Arms Rifle Dovetail Front Ramp is a solid steel front sight ramp designed for hunters and shooters building or restoring rifles with custom front sights. This .6875" ID ramp fits dovetail-mounted fiber optic, ivory, and brass bead sight blades, making it a core component for gunsmiths and DIY builders who want to set up a traditional or modern front sight on rifles where the factory setup won't do. Whether you're working with a modern hunting rifle or bringing an older gun back to life, this ramp gives you a stable steel platform to mount your choice of sight blade.
Marble Arms has been the standard in rifle sights since the early 1900s, and their ramps are engineered to handle the recoil and environmental stress of real hunting and range use. The .188" dimension refers to the critical dovetail interface—precision-cut to ensure a secure, repeatable fit for sight blades in this standard size. Black oxide finish protects against corrosion in all weather.
Installation is straightforward: the ramp attaches to your barrel with a single screw positioned under the sight body, plus solder for a permanent bond. The flat base is drilled and tapped for two mounting screws, giving you a solid mechanical foundation regardless of your final sight choice. This is the kind of component serious rifle builders and gunsmiths reach for when accuracy and reliability matter.

