DSA makes good stuff. you are dealing direct with the factory when you order from them.
how quick they ship is equal to how backed up they are and what they have in stock.
i recently sent an inquiry to DSA about some stripped barrels a week back so far no reply. a year or so ago i ordered a few blem lowers from them took six+ weeks to get them.
i have ordered barrels and what not they had in stock and got them in a week or two.
during the 2013 panic they got two or more months behind in orders. i don't know how quick their shipping today.
DSA is known for making a good product and good prices somewhat slow order filling and shipping and a very crabby woman that works CS --LOL!
what i think happens is when you place an order if it is in stock it shipps if not it has to wait on the production and the wait depends on how deep the back order is.
other places sometimes carry DSA parts APEX and JSE for example if you want DSA stuff quick they would be better to order from.
DSA is a lot like DEL-TON before all the panic stuff they plodded along giving good prices with reasonable shipping times , then there is a panic and they get like 10,000,000 orders in one day--
for all we know they may still be catching up on the BOs from the last panic.