Posted: 9/9/2001 6:04:48 PM EDT
| Just arrived home from the Wisconsin State IDPA Championship Match at which I shot my trusty Glock 17. As luck would have it I won an older style (no finger grooves or access. rail) Glock 22 with night sights. I still have to wait 2 days to pick it up but I already have a couple question: Can I put the upper slide assembly from the 22 on my new stlye 17 frame? Can I plink with .40 ammo out of my pile of 9mm ten round mags (I figure they won't hold ten rounds of .40 though)? I know some models of Glocks are slide assembly swappable but can different generation models also share slide assemblies? Thanks! |
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While your .40 slide assembly would fit on a 9mm frame, the ejector is different, and the frame is missing the reinforcement pin. .40 rounds wouldn't feed well if at all due to the ejector, and you could damage your frame. .40 rounds will not work in 9mm mags. You can put a current 9mm slide and barrel on an older 9mm frame, and so on. You can also send your gun to Glock and have them swap out the frame for a 3rd-Gen (finger groove/rail) frame for about $99 IIRC. -Troy |
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The 9mm conversion is possible, with two important notes. 1) you must buy an aftermarket conversion barrel, not a GLOCK OEM 9mm barrel. The outside diameter of the barrel is smaller than the .40. This is not the case with the .40 and .357, which swap right out. 2) you should buy a 9mm magazine. The .40 mag will work sometimes, but the feed lips are wider, and it can double feed. New mags are less than $20. It is sometimes alleged you need a new extractor and ejector. I have conversions for my G23 and G35, have not replaced these parts, and have had zero problems. You will know immediately if you need a new ejector, as a small percentage of .40's firing 9mm will throw the brass back at you. If this does not happen immediately you are fine. As to the extractor, some say the slightly different design causes stress, and it may break. As far as I can tell this is hypothetical, there has not been a single documented case. |