Bolt stop keeps bending

[izzy]

I built a QC10 SBR chambered in .45. The combination of the bolt, buffer spring and buffer that I had to use to get the rifle to cycle properly ended up being pretty heavy. Now I can take the rifle out about two times before the bolt catch ends up a little bent. After it bends the rifle still works but there will be no last round hold open nor can I lock the bolt back by hand. I've replaced the bolt catch three times now and it's getting pretty annoying. Someone at a gun shop mentioned a company that makes a "tough" bolt catch just for this type of thing. Of course I'm an idiot and I forgot the name of the company and can't find it by searching. Does anyone know where I can get a part that will solve this issue? Is there another solution?


edit: it's a "bolt catch" not a "bolt stop"