Some CZs come from production equipped with magwell already [for example CZ TS 2, CZ TS 2 Racing Green & TS 2 Orange] but CZ models do not come with magwell.
However, that does not mean that you cannot install a magwell to them. You can, and there are plenty of options available.
But also there are some things to consider before purchasing one, as you will most probably not need only a magwell, but also short grips and mag pads that are magwell-compatible. Unless, of course, you are not simply replacing a magwell installed already from factory.
We explain everything futher below.
Why magwell
First of all, why to get a magwell at all.
Do you need a magwell? Probably not. But once you have it on one gun, most probably you will want to have it on all of your guns.
Primarily: it makes the reloading safer and faster. What magwell does it that it makes a larger opening for the magazine insertion. That allows you to reload very quickly without giving even a slight look at your handgun. And thus not loosing the eyesight from the target.
Secondarily it improves the weight distribution. Magwells are made either of aluminium or of brass. And adding those extra grams of weight [brass is always considerably heavier] to the bottom of handgun changes slightly the weight distribution, and as a consequence improves recoil behaviour of the gun.
Overall, magwells are used primarily for competitive shooting. Not that better reload and weight distribution shouhld be appreciated only in those uses, but that is where you will see magwell being used the most.
How to install a magwell
If you have a handgun already equipped with magwell, and you are just replacing it with another one, the procedure is very simple - just loose the screw fixating it to the grip, slide the magwell backwards, clean the surface and slide new magwell from the rear position in & fixate by screw.
However, if you are getting magwell for a CZ model that is not equipped with magwell from factory, you will need to first do some other changes:
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you need to buy short grips [not just any smaller grips, but grips that are made to be magwell compatible],
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you need to buy mag pads that are magwell-compatible, and
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in some cases you will need to also replace the main spring plug - that will be the case only if your CZ models has a main spring plug with lanyard loop. If you have such, the lanyard loop will interfere with magwell and you will either need to replace it with different type of main spring plug, or you will need to remove the loop.
Once you have short grips installed, you will see that suddenly the pistol grip is ready to accomodate a magwell below the grip. Clean and lubricate the surfaces and slide the magwell in from the rear. Once in the right position, lock it in with the screw.
If you use magazines with the factory mag pads, you will now find out that the magazine cannot be inserted fully - that will be solved by replacing the mag pads for magwell-compatible mag pads.
Once you have the mag pads replaced as well, your CZ is ready to go.
Materials to consider
There are basically just 2 materials to consider: aluminium and brass. If you want to add more weight to your CZ and thus make your CZ better to handle the recoil, get a brass magwell.
Otherwise we recommend going for the aluminium magwell, as it will not increase the weight so much.