You can always order one from AIM or online, and have it sent to Sooner State Pawn. Thats what i did. Its only $10, then you can get it for the online price (+$10)
I was in Big Boys on Thursday and they had some. I didn't notice if they had a any Hex receivers though. I have bought all of mine at Sooner State pawn. Can't go wrong if can wait.
We got some in yesterday at the South location. We've got some Round Receiver Mosins for $119, and Hex Receiver Mosin's for $149. These come with the accessories at no extra charge!!!
My gripe with Big Boys is that the last time I was there, their prices were too high AND they charged extra if you wanted the bayonnet and accessories (ammo pouches, cleaning rod, sling, ect.) that normally come free with the mosin. I'd go to SSP instead.