i've never played with conversion on the G26 / G27
here are some of my thoughts...
G23 - mine (sale pending) was 100% reliable with a Lonewolf 40 to 9mm conversion barrel. however, the extraction was erratic.
i now have a G19 and the G23 package will soon go to my brother.
things to be careful for, and i'm not sure if this applies to the mid-size and sub-compact glocks:
if you have 3 pins in your frame (lower), you can run 9mm, .40 and .357 interchangeably by using conversion barrels or just swap slides. I've done with other NES'rs at the range... i.e. take a G19 slide and slap it on my G23 frame, both were 3rd Gen, "3" pin frames.
i have a G17 that is a 2-pin frame, so i can NOT slap a .357 sig slide on it because the pressure of the .357 sig round will eventually crack the frame... allegedly. IF my G17 frame was a 3-pin frame, then i could buy a .40 or .357 sig slide and go to town... this is why it's wiser to get a .40, get a .357 sig barrel (no mods needed) and a 40 to 9mm conversion barrel. it's the safest way to go, -outside of erratic ejection.
just some of my "random" glock thoughts if you may....
i'd say get a G23 and have the best of both worlds if your on a budget. if not, get both.
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