Sample 1:

Likely from mid-1980’s commercial item (catalog here:  Design eventually became standard issue CFP-90 although this earlier one had a better build quality (source: Fabric is like a green dominant ERDL (smaller print than real M81 woodland) and is similar to ALICE pack material, like SADF Niemoller Vest.

No date codes on any plastic buckles:

Could be from 1984 – 1985 (source: