In SoCal the only Place the pro's go is Turners Outdoorsman.Stores all over the Place,My Brother is a Store MGR of one of them,great selection and many sales going on.
Otherwise, I'd say EBAY where I've seen crazy deals and even bought a shock bezel for my Z3 for fifteen bucks....yup, that one five dollars USD guys..gotta love a deal! Since my best friend is a Div MGR at SureFire,I have yet to actually ever buy one but have thought about it!!!!hahaha. Hello to the many guys and friends over at SF and SureFire Institute....some of the finest guys and company a man can be lucky enough to know,hat tip to Cameron,Brook and Barry and the SEALS/Shooters over at Combative Concepts.