View Full Version : Is it possible to convert barrels in a Glock? G19 going from 9mm to .40

10-15-2010, 2:06 PM
I noticed the outer dimensions of the Glock 19 were similar to the Glock 23. Would it be possible to use a barrel conversion to convert a 9mm to a .40 caliber?


Black Majik
10-15-2010, 2:07 PM
You can go down in caliber, not up.

You'll have to get a new upper, and ejector I believe to convert to .40S&W from a G19.