L2D Combat Enhanced Firing Pin Safety Glock 9mm/.40 S&W/.357 SIG Except G43 Stainless. Each unit features highly polished contact surfaces to reduce mechanical friction during operation which helps create a smooth consistent trigger pull while the included reduced power spring reduces overall trigger pull weight. Specifications for L2D Combat Enhanced Firing Pin Safety Glock 9mm/.40 S&W/.357 SIG: Manufacturer: L2D Combat Color: Stainless Caliber: .357 SIG 9mm Luger .40 S&W Condition: New Additional Features: Does not fit G43 Gun Make: Glock Fabric/Material: Steel Features of L2D Combat Enhanced Firing Pin Safety Glock 9mm/.40 S&W/.357 SIG Gun Model: All Glock 9MM/40SW/.357Sig Not (G43) Generation: 3 & 4 made in specialized factories 17-4 Stainless Steel Construction Hardened to H900 Condition for Maximum Strength and Service Life Highly polished Contact Surfaces Reduced power premium Grade ISMI Firing pin Safety Spring Included Compatabipty: Glock Generation 3 & 4 pistols - 9MM (Not 43) / 40SW / .357Sig Package Contents: L2D Combat Enhanced Firing Pin Safety Glock 9mm/.40 S&W/.357 SIG L2D Combat 3HD-PP1-GEFPS: Glock 9mm/.40 S&W/.357 SIG Enhanced Firing Pin Safety Except G43 Stainless