I have some M-16 and M-16 3 round burst parts I ended up with and don't need. I want to sell it all as a lot and all NFA rules apply. No conversion questions answered so don't ask. Here's the list: 4 triggers, 5 selectors, 5 auto sears, 7 auto sear pins, 29 burst cams, 10 burst cam springs, 6 hammer springs (burst type). All parts are new mil spec but I don't know the manufacturer. Thanks! REDUCED PRICE IS $150 SHIPPED.