The Apex Trigger Bar for for Slim Frame Glock Pistols is a direct drop-in replacement for the Glock Slim Frame Trigger Bar. It is progressive stamped from heat-treated spring steel and Nickel-Teflon coated for ultimate reliability.Features :Smoother trigger pull due to low friction Nickel-Teflon coatingAids in producing a positive reset100% Manufactured in the USAFor Glock Slime Line Pistols (43/43X/48)Does Not Fit Glock 42