No,they are all special order and expensive for a dealer to sit on.
Suggestion:
Go to a dealer you know and have him fax a copy of his FFL to DSA with permission from him for you to do business directly with DSA.DSA's advertised prices are $200 over dealer cost and you pay DSA directly after you place an order..Dealers get no break on accessories,so negotiate wisely. I know of only one place online that has DSA's in stock,but none of them are MA AWB complaint.
You might find a used one at a shop,but they are rare.
I love mine.