Bolt Airsoft upper receiver replacement options

[Stuow]

Hi All,

 

I have a Bolt B4 PMC QDC (https://www.dkarmaments.co.uk/product/bolt-b4-pmc-qdc-silencer-recoil-m4-black/), I've swapped and changed the handguard a couple of times previoulsy but the last time I tried I managed to actually rip the metal of the upper reciever (just under the top rail lip at the back by the charging handle), complete rookie mistake.  I've tried to find a replacement but everwhere seems to be out of stock.

 

So, would anyone know if theres a different upper receiver that will fit on this gun at all or will it need to be a like for like replacement?  And if so, does anyone have a spare or unused one they would sell?

 

Thanks in advance,

 

Stu