Improve the performance of your S&W revolver with the HIVIZ interchangeable sight. Our bright and ultra-durable sights will enhance your confidence and shooting experience.Features: HIVIZ resin overmold design Most durable sight available All steel construction LitePipe diameter 0.090 Limited lifetime warranty under normal conditions and proper use of firearm Fixed color green or red Will fit any Smith & Wesson revolver with DX type interchangeable front sight