G&P receiver help

[boom headshot]

Does anyone have a spare G&P delta ring and any advice for breaking in G&P receivers? as i cant fit my G&G delta ring which came off my 10 inch barrel set and the receiver pins and mag catch are really stiff. Other spares i need are a charging handle, AMBI mag catch, bolt catch, trigger guard and G&G barrel screws (the ones at the end that goes into the breech and stops the barrel from rotating) Its really annoying as the new receiver is beautifully finished and made with lovely engraved C8A1 markings