The Marble Arms .343-Inch Barrel-Mounted Front Sight in brass gold (Marble Arms part no. 103431, model 34-W) is a classic-style replacement front sight built to mount directly onto a barrel rather than into a dovetail or ramp. The .343-inch base diameter and 1/16-inch blade width are sized to match specific factory barrel dimensions, and the brass gold blade offers a bright, easy-to-see sight picture against dark iron sights, a look long associated with Marble Arms’ traditional lever-action and rimfire sporting rifle sights. It’s a direct swap for shooters restoring or upgrading a barrel-mounted iron sight setup.

Key Specifications

• The mount type is barrel-mounted, rather than dovetail or ramp mounted.
• The base diameter is .343 inches, sized to match specific factory barrel dimensions.
• The blade width is 1/16 inch.
• The finish is brass gold, giving a bright, visible sight picture.
• Style is Barrel Mounted, attaching directly to the barrel rather than a separate ramp.

Frequently Asked Questions

How do I know if this sight fits my barrel? This sight’s .343-inch base diameter is sized for specific factory barrel dimensions, so it’s worth measuring your existing front sight base or checking with our staff before ordering.

What does the brass gold finish offer over a standard blade? A brass gold blade shows up brighter and more visibly against most target and iron sight backgrounds than a plain blued or black blade.

Is this a dovetail or barrel-mounted sight? It’s barrel-mounted, designed to attach directly to the barrel rather than sitting in a dovetail cut or ramp base.

Buy the Marble Arms .343in Barrel-Mounted Brass Gold Front Sight, 1/16in

Order the Marble Arms .343in Barrel-Mounted Front Sight from our Lubbock, Texas gun shop. We can help confirm your barrel’s base diameter matches this sight before you buy, and every Marble Arms order ships insured. Browse more gun sights for compatible rear sights.