High quality metal mid-frame (inner frame) for USP .45
 

I've noticed some after market mid-frames for other guns, and I was wondering if there are any mid-frames available for the usp .45 that are made with better quality than the oem's (original equipment manufacturer)?

I think the stock mid-frame is made out of shitty pot-metal...and frankly I hate the idea of a vital component being made from shitty materials.