Went by TSC today to look at the receiver stock like I bought. Yep- made in China. Tried a test fit and lo and behold some of the Reese drawbars will not go in the Reese receivers. In fact I got one stuck about an inch in and couldn't get it back apart

I took some crappy (really crappy!) cellphone pics below. Notice the radius of the internal corners in the tubing. Look closely at the 2nd pic upper right corner of the tubing
The one I bought was nowhere near this bad, but still wouldn't accept some 2" drawbars.
I took some crappy (really crappy!) cellphone pics below. Notice the radius of the internal corners in the tubing. Look closely at the 2nd pic upper right corner of the tubing