Sharp Shooter, 1827 W 208th Street in Torrance (310 618 9971), is located in a small business park. Not a lot of character on the outside, the inside is much bigger than it looks.
It's more of an indoor range than it is a gun store, although there are new pistols for sale and sundry other shooting-related items (targets, cleaning supplies, drop-in gunsmithing bits and pieces for 1911s). What's most impressive is the window all the way across the back of the shooting range, so you can see all the shooters at the same time.
West Coast Tactical has its shooting classes here. I hope to get to one of their Handgun 1 classes next year.