Technically, an L8A4? (clone?)
Not a Sterling conversion - there is no plunger ejector through the left wall of the receiver.
Charger guide adapter is the Enfield clip-in type, rather than the Sterling bolt-on one.
Magazine is also Enfield.
Barrel has no bayonet lugs - likely not military.
I've seen the "308" stamp on the butt on similar rifles here in Australia.