Except for guns themselves, you’ll find everything you might need to be a pro and high-precision shooter in this site: Command Arms Accessories designs, manufactures and sells laser and light mounts, recoil accessories, parts to carry your magazine around and even cleaning kits. The site is very nice in its design and very complete in its descriptions, plus you’ll be able to find animation demos of some of the products in their catalogue where you’ll be able to admire the little elements of design while understanding what the benefits of choosing to complete your gun with one of these accessories are.
The only disadvantage of how information is organized in the site is that you don’t get links to these videos from the product pages, but rather have to find them all together under the ‘Product Animations’ tag, where much to my surprise they all start playing at unison without users being able to stop one or any of them. The site is also gateway for dealers, who can sign in and see listings in wholesale prices, but strikingly there is no information on becoming an authorized retailer. 
