Silver Spring, specifically doesn't have anything local as far as breweries go, mostly just drinking local items such as many of the Maryland brews from Flying Dog, and DC Beltway offerings like DC Brau, Port City. The closest brewery would be 3 Stars which is in the Takoma Park section of DC. That's the closest to Silver Spring (they also are a shop that sells brew equipment also).
Bottle shops: I do 90% of my shopping in DC. Way better selection and prices than Silver Spring because Montgomery county has high prices on beer. However, Fenwick doesn't have too bad a selection but their prices are really high. Cheaper prices and selection are more the thing on the DC side.
As for a beer bar: In Silver Spring hands down the best place is the Quarry House Tavern. It's an obscure dive, but has a great bottle list, small taps offerings, but lots of selection and a basement feel. It's basic bar food nothing crazy good.
That's my 2 cents on "Silver Spring", but I do most my slumming in DC!! Where all the real good stuff is
Hope that helps.