Machined aluminum trigger helps eliminate the mushy feel of the factory plastic part. Closely held tolerances remove trigger slop and free movement for smooth, consistent trigger letoff. Trigger face incorporates a wider trigger safety and contoured edges that are easier on the finger than the factory shoe. Drop-in installation requires no modification to gun. Does not alter factory pull weight. Mfg: Lightning Strike SPECS: 2024 aluminum, black, anodized. Small fits all Glock small frame pistols in 9mm, .357 Sig and .40 S&W. Large fits Glock large frame pistols in 10mm and .45 ACP.