u/Big_District_6929

Hello everyone. I recently bought this DDM4 to replace my broken Toxicant MCX Virtus. Any upgrade suggestions? I am also looking to build a full upper that I can swap out for outdoor games. I am having issues with it already where the bolt does not lock back on empty mags while firing but will lock back if I pull back on the charging handle. Still shoots perfectly fine just have to keep an eye out for when I dry fire. Also has anyone successfully removed the compensator without having to saw it in half? I would really like to put a tracer unit on this riffle without having to use a disk saw or buying a whole different outer barrel. Thank you everyone for the help!