Chiappa Firearms 500093 M4-22 Gen II Pro Upper 22 LR 16″ Steel Barrel, Matte Black Polymer Receiver, 7.80″ Quad Picatinny Rail For Use With Mil-Spec Lower Receivers Includes 2 28rd Magazines

Just like the MFour-22 rifle, the Chiappa M4-22 Upper Receiver Kit takes advantage of AR platform dimensions and geometry. These upper receivers will fit on any MIL-SPEC lower receiver to create a .22LR rifle perfect for plinking or training. Includes 2-28 Round Magazines.