First ensure the magazine is out of the well and the dissassembly lever is pushed down and forward with the index finger.
I'm sure someone will be by here soon with better answers than I have, but there's only 2 things I know very important when reassembling the Bersa Thunder 380. The Recoil spring has two different sized ends. The tighter end goes toward the chamber and the more open end goes toward the muzzle. If you hold the frame with the spring in place and let it point toward the floor, the spring shouldn't fall off. If it does, turn it around and go from there.
Second. the "bitter end" or the end of the spring should be up in the 12 o'clock position with the open part of the end of the spring up. Then just slide the spring into the slide, compressing the spring as you bring it farther back toward the chamber all the while holding the dissassembly lever activated with the other index finger. At the extreme travel of the slide to the rear, simply set the slide down on the frame and allow it to advance forward then return the dissassembly lever to the locked position and done.
I have had no feeding or ejection issues with either of my 380's either the Duo Tone or the CC since a break-in period. Mine seemed to be very short only about 200-250 rounds. Some people here recommend 4 to 5 hundred.
Enjoy
Bill
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