CZ 75B issue

[dogzilla]

I just bought a cz75 (not new but supposedly unfired) When inserting a loaded magazine the cartridge rim catches on both the frame and on the black part with the ejector on it. I am certain that the flat piece of spring steel that acts as a magazine guide isn't bowed enough. It doesn't contact the magazine at all. If I pull back on the mag while inserting it, it will seat no problem. If I push the cartridge forward in the mag about 1/16", it seats no problem. I do see a couple of sharp edges on both the frame and the ejector part that would certainly help I I smooth them out with jewellers stone. The piece of spring steel is almost certainly the primary culprit though. Has anyone had similar issues? I really like the gun and intend to do the single action conversion once I get this sorted out. I don't believe it's difficult fix, just want to hear any input or if it's a common issue

 

[4n2t0]

1) Take the grips off and take a look at the magazine brake, is it installed correctly?

2) Aftermarket grips? Are the grip screws hitting the magazine?

 

[dogzilla]

Had a closer look thru my magnifying goggles. Brake is ok, there are 2 edges on the internal frame that are catching on the brass. Once I radius them a touch, should be problem solved. Grip screws are behind the brake and cannot contact the mag under any circumstances