Has anyone done it?  I'm not worried about cutting the hole but is there any reason why this can't be done?

Sounds like you want the only improvement from the Gen 4.

I'm curious as well.

I will compare the magwells when I get home to see what if any difference there is beyond the frame opening. I imagine this would have an impact on mag selection. IMO it will be more work that it is worth. slap a Vicker release in and call it a day or at a minimum just bevel out the area around the factory release

I'm surprised this isn't a popular service.  I'd be up for doing this to my 3rd gen gun  ....  maybe not my first gen

There are a few folks that prefer a mag release on the right side.

valid point.... sorry I just assumed everyone shot correctly

TexasRifleman did this.  Seems like it would be pretty straight forward.

How about cutting it for the Lone Wolf/Aerotek style mag release?

It's funny you bring this up, I was wondering the same thing a while back when handling my fiances gen 4 over my gen 3.

I like what you did with that grip.  Elimination of the finger grooves and clean stippling.

This mod is easy to do if you're patient, have experience building models, can stipple a Glock, and have an eye for detail.

This is not something a novice can dive into. There is a very real possibility that you could ruin your Glock frame. If you can't detail strip a Glock, please stop here.

To start off, unload the Glock, check the chamber, and remove the slide.



Gen 3 standard mag catch and Gen 4 extended mag catch. You'll need to make a new mag catch spring slot on the Gen 4 catch to make it fit the Gen 3 frame.


Remove original mag catch


Carefully and slowly use an Exacto blade to cut out the mag catch slot to fit the wider catch.


Don't make the hole too big, or the new catch won't fit neatly like this.


The right side mag catch hole is too big for the Gen 4 catch.


Use a soldering iron to add plastic to the rear of the right side mag catch hole. Add more than necessary.


Use your Exacto square up and trim the new plastic to size.


The Gen 4 mag catch should fit flush.


Installed.


You could probably smooth out the new plastic on the right side, but I just stippled the Glock instead.


The Gen 4 extended catch sticks out about 1/16" from the frame. The standard catch is flush.


Gen 3 G17 on a Gen 3 G34.

Unload......wait......wut??

Thanks for posting that.  I didn't figure the other side for being over cut.

I don't think you could do it to switch sides.  The spring can only travel one way on the 3rd gen frames, so that would take some doing.

The cutting that is possible is only to accept the larger mag release, but it would have to stay on the same side..