MG50 on Desert Tech HTI 50BMG Rifle - Description

https://deserttech.com/hti-rifle.html

The MG50 can be ordered to accommodate the DT HTI 50BMG Factory brake with external threads.

The MG50D can be used on the DT HTI and other hosts, but MG50s cannot be used on the DT HTI without first removing the muzzle brake.