Once used 7.62mm metal disintegrating link used used on all standard NATO GPMGs namely the FN MAG , L7 & L37 , M240 as well as the MG 53 /42 with converstion kit. These are all in good condition and are ready to be used again. There is some minor wear. These are sold in bags of 50. We have a large amount in stock so please feel free to get in touch if you wish to buy multiple.