The C&H Precision optic mounting plate enables seamless installation of Holosun 407K/507K red dot sights on your S&W M&P 5.7 Equalizer pistol. Precision machined to the tightest tolerances on HAAS CNC machines by a family-owned business in Coastal Georgia.C&H Precision S&W M&P 5.7 Equalizer Optic MountCompatible with Holosun 407K/507K red dot sightsConstructed from 6061 aluminumMil-Spec Type III Hard Anodized finishStainless steel hardware includedPrecision CNC machined with multiple quality checksPerfect for upgrading your M&P 5.7 Equalizer with a reliable red dot sight mounting solution that delivers consistent performance and durability.