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The Marble Arms 50-W is a barrel-mounted front sight machined from solid steel with a blued, polished finish and topped with a 1/16" white bead. That white bead is the whole point here. It picks up available light and stands out against brush, shadows, and dark game where a plain steel blade or a worn factory bead tends to disappear. At .500" tall (measured from the top of the bead to the bottom of the dovetail) with a .531" wide base, this one sits in the taller range of Marble's lineup, which makes it a common pick when a rear peep or aperture has you shooting high and you need to raise the front to bring your point of impact back down.
This is the barrel-mounted version, so the base has the rounded sides meant for a dovetail cut directly into the barrel rather than a separate ramp. It drops into a standard 3/8" dovetail, which covers a huge range of lever guns and older rifles from names like Winchester, Marlin, Remington, and Savage. Marble has been supplying factory-style sights to American gunmakers for well over a century, so the contour and profile look right at home on a classic rifle.
Like most quality dovetail sights, this one usually runs a hair oversized on purpose so you can fit it for a tight, drift-adjustable hold. A few passes with a fine triangle or slim taper file on the base gets it seated snug, and once it's in you can tap it left or right to zero windage. It's worth measuring your existing sight height before ordering so the .500" works with your rear sight and load. If you're not comfortable filing and tapping in a dovetail, a gunsmith can set it in a few minutes.
Between the all-steel build and the high-visibility white bead, the 50-W is a straightforward upgrade for anyone wanting a faster, easier-to-see aiming point without changing the character of an iron-sighted rifle.
It's made for a standard 3/8" barrel dovetail, which covers a wide range of lever guns and older rifles including many Winchester, Marlin, Remington, and Savage models. The base is shaped for a dovetail cut directly into the barrel rather than a separate ramp. Always measure your existing dovetail and sight height before ordering to confirm the .500" height works with your setup.
Usually yes. Marble intentionally runs these a touch oversized so you can file the base for a tight, secure fit in your dovetail. A few passes with a fine triangle or slim taper file gets it seated, then you tap it in and drift it left or right to set windage. If you'd rather not file and fit it yourself, any gunsmith can handle it quickly.
The .500" figure is measured from the top of the white bead down to the bottom of the dovetail. Front sight height directly affects your point of impact, so a taller front sight lowers where the rifle hits. This one is a common choice when a rear peep or aperture has you shooting high and you've run out of downward adjustment.
The white bead really shines in low light and against dark backgrounds like heavy brush, timber, or dark-colored game. Gold beads tend to pop more in bright sun, while white grabs your eye in shadow and dim conditions. If you hunt early mornings, late evenings, or thick cover, the white bead gives you a faster, more visible aiming point.
| UPC | 871373002287 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 105032 |
| Color | White |
| Style | Barrel Mounted |
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