I have the same weapon, nice little gun. First day I had it I put 200 rounds through it without a jam. Anyhow to the topic at hand if you take it in to any reputable gun store worth their salt you should be able to find multiple options depending on how much you want to spend, but just a tip, try to find one that also carries a spare clip.
As for the holster that carries an extra magazine, I am also not a fan of that. The following video will explain why:
I have the same weapon, nice little gun. First day I had it I put 200 rounds through it without a jam. Anyhow to the topic at hand if you take it in to any reputable gun store worth their salt you should be able to find multiple options depending on how much you want to spend, but just a tip, try to find one that also carries a spare clip.