HELP ME GUYS (850 AIRMAGNUM OWNERS AND WALTHER 1250 OWNERS)

Hello All,
I need help from the owners of walther dominator 1250 and hammerli 850 airmagnum.
AS UMAREX/Walther use the WORST AIR GUN METAL Ever, No Solid materials.Even the regulator(dangerous) gets cracked.Im also a Walther Owner and i also have a problem THE LEFT HOUSING OF MY GUN HAS CRACKED, So i couldnt fix this problem, now i found a website which sells Airmagnum 850 Housing, So my question is can it fit walther dominator?