FEATURES:-Direct drop-in replacement of factory polymer trigger safety plunger & connector-Reduces trigger pull weight by approximately 1lb-Smooth uptake & reset-Crisp trigger break-Center mounted pivoting safety maintains factory safety values-For use in the following Glock model pistols (including Gen 4 versions): G17 17L 19 22 23 24 26 27 31 32 33 34 35-Doesn't fit the 10mm .45 ACP