The DAS - serrated blade is a fully serrated variant of the original recessed blade. This serrated option was introduced to meet the demand from many shooters for a more defined sight picture. It is compatible with specific models from Springfield Armory, Colt, Wilson Combat, STI International, Les Baer Custom, Rock River Arms, Dan Wesson 1911s, among others. The Novak LoMount dovetail is a commonly used dovetail sight cut, prevalent on numerous OEM and custom platforms Our sights are engineered to seamlessly integrate with a wide range of both factory-manufactured and custom-built 1911 pistols Compatible with Novak Lo-mount sight dovetail cuts, this product ensures precise alignment and secure fitting for enhanced performance and reliability