Probably atypical, but mine arrived with the sliding puzzle piece completely tied up because there wasn't enough room to function properly, instead of putting it back in place it took about 20 minutes to grind the slide and channel with it you could have it open. without using extreme force. The top edge of the slider body has 90 degree corners that are not rounded and are a bit sharp. I'm still healing a small cut from popping the bolt the first time.
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