MK13 MOD 5 style (L96 base)

L96 modded to MK13 MOD5
L96 - don’t know the base/brand
Less than 450 fps with 0.20g 
No big game with, old use
No mag !

Modifications (high quality pieces but not sure about all specifications)
Internal
-Zero trigger Laylax + piston
-barrel very good quality !!! (Maybe PDI ?)
-hop up PDI (with two side screws)
-rubber hop up very good (but very old !!!)

External
-painted body
-fake mag’ and mag’ open catch (like MK13mod0
-bipod (longer version)
-fake rail made by Aluminium.
-scope, maybe x3-9 d54mm + honeycomb killflash
-no cheek rest