Something doesn't compute, they have to be registered in order to sell to DoD.
Are there different classes of export registration?
I got a KAC 300m Micro BUIS for 50$ from the same seller whereas our awesome dealers here sell the same sight for 3 times that amount. Do your homework.
Its the 2-600m with the hexagonal bolt and smaller with ''USMC'' markings on the base.
Edit: Not surprised, really. The Americans are far more liberal than us with their gear disposal. Buddy came back from tour with an M4RCO ACOG he swapped a US marine for a pair of Cadpat AR combats. He showed up at my range one day and showed it to me.



























