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CZ Model 50 Field Stripping To field-strip the CZ Model 50, first remove the magazine (42) and clear the chamber. While pressing the takedown catch (35) to the left, pull the slide (1) back and lift it upward at the rear. Then ease the slide forward off the barrel (43) and remove the recoil spring (10). Hold the slide bottom side up in a vise. Depress the firing pin lock (9) with a punch and use a long thin punch from the front to push the firing pin lock and spring are removed, drive out the extractor pin (2), and remove extractor (6), extractor spring (5), and cartridge indicator (3). Push the takedown catch all the way to the left, and unscrew the takedown catch screw (34).  In doing this, a screwdriver with a thin shank is required to clear the barrel. After removing the screw, shake out the catch and sprig to the right. The hold-open latch and ejector (12) and latch spring (11) can be removed by driving out the hold-open hinge pin (13) to the left. Do not remove these unless necessary. Before attempting disassembly of the lock mechanism, remove the grip screw (15) and grips (14) (27). Then carefully clamp the receiver (41) in a vise with padded jaws. Place a thin metal bar against the bottom of the spring retainer (26), and push on the bar until the retainer is free of the receiver. then ease the bar back to original position and remove the hammer spring (25) from the hammer strut (24). Continue disassembly of the lock mechanism by driving out the trigger pin (31) and sear pin (38), and use a small wrench to remove the nut (40) from the hammer bolt (19). Then push out the hammer bolt, lift the sideplate (39) from the receiver, and remove the trigger bar (28), trigger (30), hammer (23), and other lock parts. After removing the hammer, push the safety (16) out to left without rotating. Take care not to lose the safety plunger (17) and safety spring  (18). Reassemble in reverse. In replacing the hammer bolt nut so not use excessive force and strip the threads.