Looks like it might be a Paruroctonus silvestrii, they are very common All along the foothills here in California. I'm from Los Angeles county and have caught several in my area while out night herping.
Lucky! I can't find Jack **** where I live. The best thing I've found here in Chula Vista has been a Black Widow xD (But I don't really go outside deliberately looking for arachnids anyways so I could be finding better if I was :/)