Redfield NGS (Non-Gunsmithing) Mount S&W K/L Drilled & Tapped Stainless Steel SPECIFICATIONS BRAND: REDFIELD CA PROP 65: YES MATERIAL: STEEL RING & MOUNT FINISH: STAINLESS RING & MOUNT PIECES: 1-PIECE RING & MOUNT TYPE: NGS (NON-GUNSMITHING) BASE DESCRIPTION Made from high-quality materials and designed with the needs of the shooter in mind, this mount system is nothing else you will find on the market. Image shown is approximate.