AK AR Buffer Tube Adapter for Alpha King, STS/MST, JM J12

AK to AR Buffer Tube Adapter

Compatible with alpha king ak74 ak105, mst/sts ak, jm j12 ak74u gel ball blasters and ak airsoft

It can let ak blasters use AR rfile buffer tube

Support rear wiring

Material: metal

Note: need a minor edit for fitting jm j12 

it does not fit rx ak and lehui slr ak