The following items are resistant to aging for 1-30 days.

AUG A3 E-Sport
Kriss S.V PBIC 2015
Barrett M82A1 Flare
OA-93 Fire
Tactilite T2 Fire
Fire Ice Fork
AUG A3 Element of Water
APC9 Element of Water (Parmanent)
FangBlade Element of Water