HELP required.....Khan K226 O/U Shotgun

Hi team, does anybody (or their mate) own a Khan model K226 O/U shottie??????

i have lost a small piece out of mine and it wont go 'Bang' anymore

its part number 12 in the manual schematic below

Attachment 236012

i have contacted Khan in Turkey with numerous emails (even in Turkish), no replies

Fish City in Hamilton (NZs Khan agent) have wiped their hands and wont help

the USA & UK agents did not answer my emails either,

but Australia did, they didn't have the part, but sent a photo of the new model part, below (it now has a retaining screw)

Attachment 236013

its a flat piece of 'dovetailed steel' but i dont know the length of it.......can someone measure it for me if you have or know of one please

here are two photos of the forend it slides into.....

Attachment 236014 Attachment 236015

cheers Eric