Best place to buy OEM Glock 27 barrel?

I picked up a used G33 for cheap, wanting to try out the round. I expected to dislike it because of what I thought the recoil would be like but, as it turns out, the subcompact spring arrangement actually makes it recoil LESS than my G23. My problem is lack of readily-available ammo. I keep a stock of 9mm and .45 ACP but I don't plan on buying a bunch of .357 Sig ammo just for one pistol. I DO, however, keep a small stock of .40 S&W and it's more readily available locally.

I DO NOT want to mess with the aftermarket barrels. I want an OEM Glock 27 barrel. Anyone know the cheapest place to buy one? Can't seem to catch one on the boards anywhere.

Finding one isn't a problem. I'm just seeing if anyone has found the cheapest place.

I can go dealer through Brownells but I don't have an account with Midway. It looks like the $110-120 neighborhood is pretty much what I'm going to have to pay unless I stumble upon one that someone has for sale online.