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Puntmefar
April 28, 2011, 07:03 AM
I am building a custom Glock 22 upper to put on my Glock 17 lower. The 17 and 22 both use the same frame and internal frame parts for the lower (as far as I can tell). How ever I have been hearing there is a problem with ejection when you put a G22 upper on a G17 lower but no one seams to have a answer on why. Can any one explain what the issue is and what part I would change in the lower to correct it. The goal is to be able to change from a 9mm to a 40 S&W and back to a 9mm at will. Plus the wife put a stop on me BUYING a new gun this year she didnt say any thing about building one......... hehe. Just for the sake of full information I do not have all the parts to assemble the upper yet so I can not try cycling it to see if there is any issues first hand. Im just trying to avoid a possible issue before it becomes a reality.

LordTio3
April 28, 2011, 07:14 AM
There's an aweful lot of words there for "Can I reliably put a .40 Glock Slide on a 9mm Glock Frame?" Consequently, I've never heard of anyone doing this. Typically, I've been under the impression that you can go from a caliber of greater diameter (.40S&W), to one of smaller diameter (9mm/.357sig), but not the other way around.

I'm sure someone will be along shortly to confirm or deny.

~LT

Tom-C
April 28, 2011, 07:39 AM
Puntmefar

If you strip a 9mm Glock and a 40 Glock and hold the frames side by side, you will see the ejectors are in very different locations.

teeroux
April 28, 2011, 08:33 AM
^

Correct they have different ejectors. The 9mm ejector will strike the .40 case closer to center than the .40 ejector.

LordTio3
April 28, 2011, 09:05 AM
The only reliable way I've heard of someone "changing up" the caliber on their Glock pistol is when going from a larger caliber to a smaller caliber by replacing the Barrel and the Magazine; not the Slide or Frame (i.e. buying a Glock 17 barrel and dropping it into your Glock 22, or a G19 barrel into your G23).

It doesn't sound to me that the situation you are in (in possession of a Glock 17) will afford you the opportunity to change calibers in your pistol. There would be too much alteration required if it was even possible. You'd be better off trading in your G17 for a G22 + a little cash, and buying a Lone Wolf 9mm Barrel.

~LT

Fuzzball
May 16, 2011, 03:49 PM
No need to change anything but the barrel. A conversion barrel is thicker in diameter so there is less recoil resulting in a most pleasant shooting experience. I also added a stainless steel guide rod and new spring. The only other change is that of having to use Glock 9 mm magazines with the 15 or 17 capacity. 10 or 12 capacity will not work.

Hope this reply helps, even if it is a few weeks late..

Fuzzball