Yepper, the 1895M was introduced in 2000 with optional factory porting through 2002. All 1895M's have a straight stock (unless somebody changed it out). Marlin halted production of the 450 right before the Marlin plant closed down and they moved all the equipment to the Remington plant. To-date Remington has not sold any 450's.
There never was a barrel droop issue on the Marlin 450's!
As others have mentioned there were 1895MR's & the 1895XLR's - great rifles that bring a premium.