Glock G23 Aftermarket Slides

Norsso has expanded its product offerings to include replacement slides for both Glock 23 Gen 3 and Glock 23 Gen 4 applications. .40 S & W definitely doesn't have as much demand as the 9mm, but there were enough requests for us to add these slides to the product line. We currently are stocking the most popular 9mm slide designs with intentions to one day offer the full lineup. 

We get asked frequently if it's possible to put a .40 cal. barrel in a G19 slide. Unfortunately there are several factors that prevent this from happening. 

• .40 S & W requires a wider breech face.
• The barrel is .5mm larger diameter preventing installation into the G19 slide.
• More mass or spring is required to dissipate the extra energy from the hotter round.
• Extractor placement must be changed to accommodate the difference in case dimension.

These factors must be accounted for when producing the G23 slide. It is possible to put a 9mm conversion barrel into a G23 slide, but you can't go the other way around. 

Another useful fact concerning the Norsso aftermarket G23 replacement slide is that it can also be used in G32 applications. G32 is very similar to G23 except for the internal barrel diameter and rifling. With one slide you can swap barrels to accommodate three different calibers. (9mm, 40 cal., 375 Sig)

Have a look on our website for a design to fit your needs. Please contact us for any questions you may have.