Terms are important; I believe you mean:
1x flash hider/booster, booster cone and muzzle bushing (there is no such thing as a muzzle nut)
Are these German WWII or Yugo 53 or post-war MG1/3? If flash hider is German WWII, is it Waffen marked? German flash hiders have thin serrated rings. Yugo are thicker. You probably wont be able to tell but the values are significantly different.plated? Some research would help you.
Is the feedtray, noted as 8mm, marked with makers ID such as bpr or, etc?
Is there a small square stamp with a 2 inside it or bk stamp on any of the parts?
Just trying to determine what you are offering.....
Edited by Black River Militaria CII, 09 January 2018 - 05:06 PM.