Helps Prevent Unintentional Discharge

Holds your Glock frame securely and has two, machined slots that correspond with the cut you’ll have to make to install Cominolli’s Manual Thumb Safety Slot marked “SM” is for 9mm, .40 S&W, and .357 SIG; slot marked “LG” is for .45 ACP and 10mm. Includes a 3⁄32" End Mill that must be used in a high-speed rotary tool (listed elsewhere) to properly make the cut. Delrin® guide makes it easy to cut the correct angle. Replacement mills available separately.