ENHANCED GEOMETRY- After carefully reviewing industry standard, we calculated for improved ergonomics and decreased install time. 4140 Ordnance steel – This product is precision machined, not cast, from 4140 Ordnance steel. It is then surface treated for improved finish and corrosion resistance LIFETIME GUARANTEE– We are proud of our work. Our products come with a 100% satisfaction Guarantee you can trust DOES NOT interfere with any holster DESIGNED specifically for Gen 4 models, including additional longer backstrap pin FITS MODELS: 17, 19, 20, 21, 22, 23, 26, 27, 29, 30, 31, 32, 33, 34, 35, 40, 41, 44 (.22LR)
