The Marble Arms .570-Inch Barrel-Mounted Front Sight in brass gold (Marble Arms part no. 105731, model 57-W) is a larger-diameter version of Marble Arms’ barrel-mounted front sight line, sized for barrels with a .570-inch base diameter rather than the smaller .343-inch pattern. The 1/16-inch blade width and brass gold finish match the rest of the barrel-mounted series, giving a bright, classic-style sight picture, and the barrel-mount design attaches directly to the barrel rather than to a separate ramp base. It’s built for shooters restoring or replacing a factory front sight on a larger-diameter barrel.

Key Specifications

• The mount type is barrel-mounted, attaching directly to the barrel.
• The base diameter is .570 inches, sized for larger-diameter barrels than the .343-inch pattern.
• 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 is this different from the .343in barrel-mounted sight? It’s sized for a larger .570-inch barrel base diameter, so the two aren’t interchangeable; matching your barrel’s actual base diameter is the key factor.

Does this sight require drilling to install? No, it’s a barrel-mounted sight designed to attach directly using the existing base diameter.

What finish does this sight have? It has a brass gold finish.

Buy the Marble Arms .570in Barrel-Mounted Brass Gold Front Sight, 1/16in

Order the Marble Arms .570in Barrel-Mounted Front Sight from our Lubbock, Texas gun shop. We can confirm your barrel’s base diameter matches this sight before you buy, and every Marble Arms order ships insured. Browse more gun sights for a matching rear sight.