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The gun came with a magazine, not a clip. There is a big difference between the two even though the media and movies seem to use the terms interchangeably.
For holsters, there are a million out there and like shoes, everyone has their favorites. I'll suggest Galco as they are a forum sponsor, I own their products, and they make a quality holster. Galco
For a mag loader, I like the UpLULA. UpLULA