Overwatch Precision Improved Plunger for Glock Gen 2-4 9mm/.357/.40/10mm NON SLIMLINE NP3. Its radiused design coupled with a space-aged coating delivers a hitch-free trigger press and unmatched performance. Specifications for Overwatch Precision Improved Plunger for Glock: Manufacturer: Overwatch Precision Color: NP3 Finish: NP3 Coated Fabric/Material: Steel Gun Make: Glock Gun Model: Universal Features of Overwatch Precision Improved Plunger for Glock Fit for Concealed Carry Competition and Duty (where approved) Works in OEM Glock and aftermarket slides OEM-force spring included for safety and reliability Decreases measurable hump found in OEM design NP3'ed for lifelong lubricity Package Contents: Overwatch Precision Improved Plunger for Glock OEM-force spring What firearm models does the manufacturer say Overwatch Precision Improved Plunger for Glock is compatible with? The manufacturer says that Overwatch Precision Improved Plunger for Glock is compatible with UniversalOverwatch Precision 20004: Improved Plunger for Glock Gen 2-4 9mm/.357/.40/10mm NON SLIMLINE NP3