C&H Precision V4 Optic Mounting Plate For Equalizer/ M&P 5.7 to Holosun 507K/407K Anodized Finish Black. Each plate is precision machined to the tightest tolerances on HAAS CNC machines and each plate goes through multiple quality checks before shipping. Specifications for C&H Precision Weapons V4 Optic Mounting Plate For Equalizer/ M&P 5.7 to Holosun 50: Manufacturer: C&H Precision Weapons Red Dot Sights-Footprint: Holosun K Additional Features: Mount S&W M&P 5.7 Included Accessories: Mounting Screws Optic Cut: Smith & Wesson M&P 5.7 Optics Ready Color: Black Case Finish: Anodized Handle Color: Black Blade Finish: Anodized Handle Finish: Anodized Finish: Anodized Black Gun Make: Smith & Wesson Features of C&H Precision Weapons V4 Optic Mounting Plate For Equalizer/ M&P 5.7 to Holosun 50: For Equalizer/ M&P 5.7 to Holosun 509T Package Contents: C&H Precision Weapons V4 Optic Mounting Plate For Equalizer/ M&P 5.7 to Holosun 50