Make your mag drop

[Trigger-Creep]

After I took my CZ75b in to have a Kadet kit fitted, I asked the smith to polish the trigger/sear and somehow allow the mag to drop cleanly from the gun when the release button is pressed.

The mag was dropping less than .5 from the bottom of the well and I was having to manually strip them during IPSC matches.

Pin #25 was loose and I had to make sure not to loose it anytime I had the grips off, but the simple fix didn't occur to me at those times. To make the mag drop cleanly, just remove pin #25 and flat spring #24.

Americans like to discard spent magazines, while the Europeans like to retain thier spent mags, in some cases even attaching lanyards to them. I guess this is why that spring is present to press against the mag. It serves no other function.

Also - the smith told me he could work on the trigger and sear, but after trying the trigger pull, he said he couldn't really improve on it. Not bad for a fresh from the box gun.

Trig

[Walt-Sherrill]

Its not that Americans like to discard spent magazines -- its that the folks you hear of doing this are shooting in timed competitions, where retaining a spent mag takes time...  and it serves no purposes in that context to retain the mag.

Making the change you suggest will work, but if you don't do another modification to the inside of the frame -- using a Dremel to grind off a bit of metal.  That mod has been outlined here on the Forum (somewhere) by Tlrfiend.  

Left unchanged, with the mag brake removed, you may find it difficult to speedily insert new mags into the gun under pressure.  (Not saying you will, but that it MIGHT happen.)  In competition or in real-world stress, when the adrenalin gets to working in your body, most people find that doing fine-motor movements are a bit more difficult...)

The mag brake retains the magazine on the 75B and 40B versions, but it also guides the mag into the grip so that it doesn't catch at an awkward angle on the inside of the grip frame -- which is possible if you're rushing.  

You can keep the mag brake in the gun and still have drop-free mags,  if you tighten the loop at the top of the brake by bending it with needlenose pliers.  This has the effect of shortening the spring slightly, and taking some of bend out of the lower part.  This allows the mags to drop free.  (Be careful when doing this, as the metal of the mag brake is very brittle.)   But you'd be no worse off than NOT have the brake in place.

You can also buy athe CZ-85 mag brake spring from CZ, which is easy swap out.  The CZ-85s come with drop-free mags.

[jluntsford]

I have a CZ75 SA which comes with the "drop free" magazine brake.  It's the same as the 75B except that it's totally flat.  After a few speed reloads in IPSC matches, I found that the magazine was pushing the spring against the little metal tabs that the grip screws go into and causing it to bend outward at the top.  This caused it to hold the magazines.  After talking with Mike, he recommended using the flat spring that fits the CZ75 Standard IPSC.  It's a very thick flat spring that will solve any problems with the magazine not falling out.  The only modification required is filing a very small bit of metal off of the mainspring plug to accomidate the thicker spring.  I definitely wouldn't recommend removing the spring all together, it allows the magazine to be inserted tilted back slightly and hitting the grip screw tabs.  

As always, Mike the gunsmith at CZ can help with problems like this.  He's only a phone call away.

[dlsolt]

i just got done making my 75dao drop free.. all i did was used a small needlenose and made the bend go the opposite way.. can insert new mags with no prob, and drops them right out of there..

[gfbvmb]

Loosening up the grip screws - after also installing a couple of star washers - helped. Now 4 out of 5 drop free, but I'll wait until it's absolutely necessary to remove the grips for cleaning before I mess with that leaf spring since I had to have it held in with a roll pin - the solid pin kept dropping out of the frame.  Despite what C/T advertises, it took 40 rds to get hits dead on the dot (those laser adjustments are VERY fine and reall not that easy). When I re-zero'd with me defense load (Cor-Bon 115gr +P) it tookanother 15 to get  the hits back on the dot.

I found that even the tiniest movement of the hex wrenches mover the dot quite a bit.

Thanks for the input.
 

[Walt Sherrill]

It's not rocket science. 

And Angus Hobdell has introduced a new part (custom shop) with a much stiffer mag spring.

Just bending the mag brake in the opposite direction, so that it presses against the mainspring is often enough.  (Take the top in out, bend the brake, and reinstall the pin.)  I used to bend the top of the tab, where the pin goes through -- until I broke a couple of the tabs.

Screwing with grip screws will come back to haunt you, as they tend to work loose and fall out when you don't need that happening.