I ordered a TIN mag release and the coating was missing or worn off. I figured this was just something that slipped through QC because I have ordered a couple other TIN parts from them and didn’t have issues with those. I was taking the gun out for a big range trip in the next week so I didn’t want to take the time to try to return the part and get a new one so I just ordered a new one (so it’d be here in time for the outing) and the new part was missing the coating in the same exact spot. So that says to me, the whole entire batch is missing coating in the same spot and you can clearly see it when you look at the gun. This means that whoever is packing these packages can see that the coating is missing and they send it to us anyways. Also no QC on the parts. These things should be sold as blemished parts and not packed and sold for the same price as a brand new part. I will not do any business with this company anymore. Zero stars if that was an option.