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AM15 full auto UPPER RECEIVER allows you to shoot slightly modified.22LR American 180 drums, in either 165 round, 220 round or 275 round capacity, on your M16 host receiver. The full auto AM15 upper receiver conversion is a BATF APPROVED OPEN BOLT .22LR rimfire caliber conversion that ejects through the AR mag well.
It uses fire control parts that are similar to Colt Light Machine Gun parts, which will be provided with the AM15 conversion. The AM15 conversion at this time will only work on registered receiver sear drilled M16 lowers. We are working on reliable solutions for owners of drop in auto sears.
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