The action enhancement kit for glock pistols features the apex action enhancement trigger, with gen 3 factory trigger bar, apex ultimate safety plunger for glock and apex performance connector.The kit is a direct drop-in replacement of the factory polymer trigger, safety plunger, and connector and provides for a smoother trigger pull with reduced travel, reduced reset, a crisp break, and approximately a 1 lb.Reduction in trigger pull weight.Note: this model does not fit the 10mm,.45 acp, or.45 gap caliber or gen 5 models.Finish: BlackModel: Action EnhancementMaterial: Aluminum