GHK 14.5” URG-I gbbr from Action Hobbies boneyard £300 . Nowt wrong with it apart from no mag and its blue .
One hour with a toothbrush and cellulose thinners its looking better
I’ll de-blue the crane stock when I have more time .
also came with an odin mag adaptor .
TM MK18 Mod 1 gbbr ordered from WGC on Jan 3rd - Arrived today with UPS no dramas .
Total cost including shipping and import duty was £550 .
Border Force had opened it but resealed it securely .
Probably the spring that returns the tappet plate . Its possible to bend the spring end into another loop with thin nosed pliers .
https://www.thecageairsoft.co.uk/retroarms-tappet-plate-spring-ar15-ak/