Specna Arms Rock River Arms M4 upgraded by Luke at Negative Airsoft

Specna Arms Rock River M4 upgraded by Luke @ negative airsoft,
it has had a warfet fitted so it now only runs 11.1v batteries,
new tight bore barrel,
gears re-shimmed,
maple leaf hop rubber
very snappy trigger response
has had a different outer barrel fitted i think its daniel defence but its been so long i forget
this has never been skirmished i cant airsoft anymore so selling my whole collection
i would prefer collection as delivery would be £20
thanks for reading my advert…