Will get stuck on 2 piece tube - Agency Arms Benelli M4 Compatible Modular MLOK Rail

Great product, only slight movements once it’s installed and unlike some other offerings it does not directly make set screws contact the gun itself. Instead it uses a good design which locks into bracket.
However if you have the 2 piece mag tube version you’ll either have to take the tube apart every time on cleaning or buy a new 1 piece tube that doesn’t have the extra thickness.