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Discussion Starter · #1 ·
I'm looking for a barrel to convert my G33 .357 sig into a .40 cal. I know there are barrels to convert G27 to G33. I'm not sure if I could just take the barrel from a 27 and drop it into my 33. I'd like to start enjoying some cheaper .40 ammo on occasion.

However, I do know that you Can Not drop a barrel from a G22 into a G33. It took me 2 hours and 3 hands to get the slide back off!!

I would appreciate any feedback.
 

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I do not believe there is an upwards conversion barrel for your caliber to .40SW, and if there was, I would recommend against it because the basic firearm was made to take the pressures (and recoil impulse) of a .357SIG and not the .40SW

Generally, conversions are downwards in caliber (ex: a .40SW Glock can convert to fire 9mm).
 

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Discussion Starter · #4 ·
brutusvk said:
They use all the same internals, same recoil spring, etc. You can swap the barrels.

Some websites list "conversion" barrels but they are just standard 40 s&w barrels.

I have shot the 23 barrel in my 33. Sticks out an inch but works fine.
I just found on this website that it is possible to change from 357 sig to 40 cal.

Why would the G22 barrel not fit the G33?

Also, can I change it to 9mm using a G26 barrel?

Here is the web site I just read...

http://glockstore.com/blog_detail/72_Convert_Your_Glock_357_40_Caliber_and_Vice
 

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Discussion Starter · #6 ·
brutusvk said:
They have a different locking lug.
Is there anyway to convert to 9mm using a G26 barrel? Not sure if you're referring to the lugs on the 26 or 22. I now know they are different in the 22 from the 33 for sure.

I really appreciate your help.
 
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