This is the factory Glock .40 barrel that comes stock in the Glock model 23C. It can also be used to convert the 32C to shoot .40 s&w. It cannot be used as a compensated barrel in the 23 or 32 due to the lack of ports in the side. Using it to convert the 19C to shoot .40 s&w is not safe as it will not fit into the slide properly. Calibers can only be converted down, not up. This barrel will not work extended in the 27 or 33 because the ports due not protrude out of the slide.
Caliber: .40 s&w
Height: 1.26 inches
Length: 4.02 inches
Rifling: right hand, hexagonal
Length of Twist: 9.84 inches
Travels at: ~ 970 feet per second
Using reloaded or lead ammunition in Glock barrels is NOT recommended!