Aves claims to introduce changes and tweaks to the rails they sell, which they suggest improve the design. I have pulled the dimensions from an Aves production rail set and now release them for the benefit of the community.
Front rail is 6160 aluminum and the others are 17-4 stainless steel.
DD17.2 Rail Set (Aves Model)
DD26.2 Rail Set (Aves Model)
FMDA G19 Rear Left Rail