Weapons from patch 1.6.x on version 1.4.0 (Dying Light)

The question is, is it possible to transfer all weapons from 1.6 (bozak bow, platinum items, etc.) to version 1.4.0?

Why not "it's easier to install 1.6 and not take a steam bath" - the point is that 1.4.0 flies on average for me, while 1.6 is godlessly buggy and freezes even at minimum.