GM doesn't have these barrels in constant production, but intead will run a lot of them every so often. If TOTW is out of stock now, it might indeed take them awhile to get more as they will have to wait for the next production run from GM. TOTW also raised their prices on GM IBS barrels this spring to $178.50.

Midway ShootersSupply has the GM IBS barrels for $154.99 and if this is the place to which you are referring, they are excellent to do business with and I wouldn't hesistate to order from them.That is an excellent price and ifthey havethe barrelin stock, you should get it while you can.