scale change when grabbed

[uDezimiro]

I have my gun magazine (firearm).

Gun has scale = 3.

When I release a magazine - it became smaller.  

It's  because parent now is null. 

and scale = 3 not inherited from parent and scale becase 1 again.

I fixed that by use 

magazine.transform.SetParent(null, true);   (true - its worldPositionStays)

but when I grab this magazine by hand - it became small again. 

This is so stupid. How can I make model big and keep scale 1. (to avoid this sizechange?)

if how can I scale it when grab? (I don't like this idea.. but..)

p.s. maybe there is a way to resize whole object without changing it scale? resize somehow and make it big with scale 1 in UNITY. ?