Complete OEM spec lower parts kit is made for the Glock 43 but will also work with Polymer80 PF9SS and SS80 frames. OEM Glock locking block is not included. Polymer80 frame kits ship with their own locking block. Kit Includes: Trigger w/ Bar Trigger Housing Trigger Spring Trigger Connector Trigger Pin Trigger Housing Pin Slide Lock & Spring Magazine Catch & Spring Slide Stop Lever