Glock Polymer Rear sight (OEM) 6.9/+1 is standard issue for G20,21,29,30,31,32,36. Part number 2 on the Glock Schematic
Glock Polymer Rear sight (OEM) 6.9/+1 is standard issue for G20,21,29,30,31,32,36. Part number 2 on the Glock Schematic
