Brand new in package belt fed conversion for AR15/M16. Short stroke piston system uses M27 linked ammo same as the FN249. I have a 16” and a 12.5”. $7k each or $13,500 for the pair. Comes with everything you need to make your milspec lower work with it and 100 ammo links in a nice zip up range case. Edit: these are the UPPERS. Not entire guns. All you need is an AR lower. Also, milspec AR lowers are like $100 so no, this isn’t only half the gun and no I won’t take half the price. This is what these cost. This is a new in packaging product that has a month of back order. I will not sell them at a loss.