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Marble Arms has been setting the standard for iron sights since the early 1900s, and this .375" 37-W front sight carries on that heritage. The "W" designation means it sits on a wide 17/32" base with rounded sides, made to seat into a dovetail that's cut directly into the barrel rather than into a separate ramp. The 1/16" brass gold bead gives you a fine, bright aiming point that pops against dark game and shaded backgrounds, and it pairs beautifully with a rear peep or a traditional open notch.
Height matters more than anything with a bead sight, and this one measures .375" from the bottom of the dovetail to the top of the bead. If your rifle is shooting high with the rear sight bottomed out, or you've added a taller rear peep and need to bring the front up to match, this is the kind of part that gets your point of impact back where it belongs. It's a common fix on vintage and modern lever guns from Winchester, Marlin and similar makers, along with plenty of other barrel-dovetail rifles.
Like most quality dovetail sights, this one may run a hair oversized so it locks in tight instead of drifting loose. A few light passes with a fine triangle or slim taper file on the base is usually all it takes to get a clean, snug fit, then you drift it into place. That extra material is a good thing since it means a solid, rattle-free seat once it's home.
The fine 1/16" bead is a favorite for folks running peep sights, where a smaller dot centers cleanly in the aperture and helps with precision at distance. The gold finish catches available light without washing out, which is why it's been a go-to for hunters chasing that quick, instinctive sight picture in the woods. It's a simple, well-made American part that brings a traditional look and real function to your rifle.
Sight height is measured from the bottom of the dovetail to the top of the bead, and this one comes in at .375". If your rifle shoots high with the rear sight all the way down, or you've installed a taller rear peep, a taller front sight like this brings your point of impact back on target. Marble Arms publishes a sight height chart that walks you through measuring your setup so you land on the correct number.
It's designed for a barrel-cut dovetail and has the wide 17/32" "W" base with rounded sides for that application. These sights often come slightly oversized on purpose so they seat tight, so plan on a little fitting. A few passes with a fine file on the base is usually all it takes before you drift it in for a snug, rattle-free fit.
The 1/16" bead on this sight is the finer of the two, giving you a smaller, more precise aiming point. It's a popular pick with peep sights since the smaller dot centers cleanly in the aperture for better accuracy at distance. The 3/32" bead is wider and easier to pick up fast, which some folks prefer for quick shots on close game.
The brass gold bead catches available light and stands out well against dark targets, shaded timber, and low-light conditions without washing out. That's why it's long been a favorite for hunters who want a quick, instinctive sight picture. Ivory or white beads tend to show up better against dark backgrounds in bright daylight, so it comes down to where and how you hunt.
| UPC | 871373002157 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 103731 |
| Color | Gold |
| Style | Barrel Mounted |
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