The XS Sights DXW2 Big Dot Sight (part no. SI-0013S-3Y) is built for the SIG SAUER P225, P226, P228, P229, and P320, replacing the factory three-dot sights with a single, fast-acquiring yellow Big Dot front. The DXW2 rear uses a non-tritium white stripe in a low-profile V design, so the front dot does the heavy lifting in a defensive shooting.

Key Specifications

• Front sight is tritium-powered for round-the-clock illumination.
• Big Dot front measures approximately 0.188 in. in outside diameter for a fast, unmistakable aim point.
• Uses a high-contrast colored front sight paired with a Glow Dot design that absorbs ambient light and glows in low light.
• Rear sight is a low-profile V design (non-tritium white stripe) that improves visibility of the front sight instead of competing with it.
• Follows XS’s dot-the-i sight picture, a straight-line alignment that is hard to confuse front from rear.
• Rear sight ledge allows one-handed slide manipulation against a belt or holster edge.
• Rear and front are durable CNC machined steel, not cast or stamped.
• Backed by a 10-year warranty and a 30-day satisfaction guarantee from XS Sights.

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Frequently Asked Questions

Which SIG models does this fit? It is sized for the P225, P226, P228, P229, and P320; confirm your exact model’s sight-cut dimensions before ordering.

Is the front sight tritium? Yes, the Big Dot front is tritium-powered for constant illumination; the rear is a non-tritium white-stripe design.

Will this fit my holster? Yes, it is built to fit standard holster options sized for factory SIG sight heights.

Buy the XS DXW2 Big Dot Sight

Order the XS DXW2 Big Dot Sight for SIG SAUER pistols from our Lubbock, Texas gun shop. Browse more XS Sights or the full gun sights category.