A military surplus firearm or other item that is made In once communist states in Europe. Like Poland, Russian and east Germany. Com is sort for commie so a commie block sorted to com block.
What a nice com block hand gun bro.
What a sweet com block helmet dude.
It is a item made in a once communists state two examples is Poland or Hungary or anything east of the iron curtain.
Cool com block helmet bro where was it made.