The sight set is everything you need to convert your G42/G43 over to OEM GLOCK Tritium Night Sights kit includes the following part numbers:
 
GLSP33578Glock, OEM, Night Sight For Glock 42 & 43, 6.1mm Slim Rear, Black Finish, 3 Dot Style
 
GLNF17G24 Glock, OEM Front Night Sight, Fits All Glocks, Green Dot, Screw-on, With Screw