Marble Arms .343in Barrel-Mounted Front Sight, 1/16in Thread, Steel White

The Marble Arms .343in Barrel-Mounted Front Sight, 1/16in Thread, Steel White is a replacement front sight from Marble Arms (brand part no. 103432) sized to a .343-inch sight height. It uses a base that threads directly into a barrel-mounted dovetail or screw hole, keeping the classic Marble Arms sight profile that generations of rifle owners have used to replace worn or damaged factory sights. Built in steel with a white finish, it is a drop-in upgrade for gunsmiths and rifle owners restoring or customizing a barrel’s factory sight setup. This is sold as an individual front sight, not a complete sight set.

Key Specifications

• .343-inch sight height matches the specified mounting dimension for a correct, factory-style sight picture.
• Barrel-Mounted base gives a solid, low-profile mounting point on the barrel.
• Steel construction stands up to hard use and recoil over time.
• White finish gives a bright, high-visibility contrast against a dark front sight ramp.
• 1/16-inch thread matches the standard thread size for this sight mounting style.
• Individual replacement sight lets you swap just the front sight instead of buying a full set.

Frequently Asked Questions

How does this sight attach to the barrel? It threads directly into a barrel-mounted dovetail or screw hole.

What sight height is this? This front sight is sized to a .343-inch height; measure your current sight or barrel ramp before ordering to confirm fit.

Is this sold as a front and rear set? No, this listing is for the front sight only.

Buy the Marble Arms .343in Barrel-Mounted Front Sight, 1/16in Thread, Steel White

Order it from our Lubbock, Texas gun shop and we will get it moving as soon as it’s ready to ship. Pick up this Marble Arms front sight and browse more gun sights to finish your rifle’s sight upgrade.