Polymer80 PF9SSBLK PF9SS 80% Pistol Frame Kit Black Polymer for Glock 43 Gen4 PF9SS Single Stack Frame features aggressive and adaptable grip texture that emulates a stippled pattern, an extended beaver tail, double undercut trigger guard, thumb ledge, picatinny/STANAG compliant accessory rail, blank serialization plate, stainless steel locking block rail system and rear rail module, hardened pins for LBRS and RRM, complete finishing jig, drill bits and end mill included. Compatible with Gen 4 Glock G43 slide assemblies and magazines. These features considerably enhance the ergonomics allowing for an effective grip and improved recoil mitigation. The PF9SS is a perfect build for Everyday Carry and comes with an embedded metal plate for those that wish to serialize their completed pistols.