CNC machined from high grade stainless steel, Stainless steel with a oxide treatment and hardened to 39 rockwell hardness.
For all full size 1911 grips and slim grips not less than 0.188" (3/16") thick. Standard bushing - Height 0.28''
Package: 4pcs 1911 standard bushing /4pcs 1911 screws/4 o rings / T10 Torx key.
The O-ring washers give the grips a secure feel when tightened down.