Modify Barrel Muzzle Cap for OTS-126 Gas Blowback Airsoft SMGs

"June 26th, I ordered an OTS126. July 3rd, I ordered this part.

The thread is not compatible whatsoever. You can see the difference compared to the one in the picture.
It's about 0.2mm smaller in diameter than the OUTER diameter of the outer barrel. I got an RMA to swap and the new one comes in with the exact same oversized thread.

If you have an OTS, measure your threads first. Mine appears to be a 16mm thread, with my orange cap's major diameter being 15.7mm.
The one I am receiving is 19.8mm in diameter.

I appreciate that they are looking into this with Modify to try to figure out what changed, however, it's also a good argument to include the dang muzzle devices in the box with the gun.