KAK Complete AR15 Upper Receiver - 9mm - 4″ Barrel - 5.5″ MLOK is an AR-style upper receiver or upper part from the Polymer80 range (Complete Upper Receivers). Our price is $429.95. Match the upper to your lower and caliber.

We list this item with its manufacturer part number on request. Order stays on our site; we confirm availability and ship tracked from the United States. If you are not sure it fits your build, ask before you order.