This is the factory Glock .40 barrel that comes stock in the Glock model 23. It can also be used to convert the 23C to shoot as a non-compensated. Converting the 32 or 32C to shoot .40 s&w is also possible. Using it to convert the 19 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 work extended in the 27 and 33.
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!