If you use eBay, Optics Planet is on it and I've found you can sometimes get better deals from them going through eBay than you can Amazon or their own website. I bought some Trijicon night sights last year from them where they listed a Buy it Now price and also "Best Offer". I searched their feedback and, reviewing past sales for the same item, figured out what the lowest price they'd accept was and bought them that way, saving 5 bucks off their lowest price found anywhere else. Plus, if they've got it listed on eBay, it had better be in stock or they risk bad feedback.