XS Sights DXT2 Big Dot Pistol Sights Yellow Glock 20/21/29/30/37/41 Tritium powered front and rear sight;Big Dot remains visible under stress;V-Notch rear sight provides a large FOV;Rear sight ledge aids in one-handed slide manipulations;High-contrast color designed for maximum visibility in bright to low light;Available in sizes: Glock 17/19/22/23/24/26/27/31, Glock 20/1/29/30/37/41, Glock 42/43, S&W M&P 9 Shield EZ, S&W M&P Full Size Compact, S&W M&P Shieldtable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; } Item Category Code: 7600 Product Group Code: 7600J Product Sub Group 1: 7600J3 Inactive: No Prop65 Applies: Yes Prop65 Cancer Harm: Yes Prop65 Chemical: Lead