I currently shoot Legacy 1916`s so I use a5/16" point..Want to switch to Heritage 90`s.. Can I still use 5/16" field points and broadheads? Or is the shaft a different size?

ttt

If I did this right, your 1916's are .297" OD, the Heritage 90's look like they are .291" OD. Points and broadheads should be good.

I use the same broadheads but my field points are 9/32 I think. The 5/16 field points are a little bigger than the shafts and can be hard to pull from foam targets.

I use a 9/32" point on my 1916 and Heritage 90,you can use a 5/16" point but will have a alittle lip.Just makes pulling from some targets a alittle harder.There is two different CE Heritage 90's out there.The old stock Heritage 90  had a spine of .530 and the new 90 has a spine of .588 and the changed the woodgrain look some.