The Glock 32 Gen4 Upper is one of the most versatile Glock uppers available. You can use a .40 barrel or a .40 to 9mm conversion barrel to be able to shoot 3 different calibers.
These are OEM Glock 32 Gen4 Uppers offered as Complete.
Compatible with Gen4 19/32 lowers with no modification.
Compatible with 19/19X/45/47/49 Gen5 lowers with a Gen5 Slide Cover Plate.
