FM Products MIKE-9 9mm Complete Upper Receiver 23.75 inch 16 inch Barrel MIL-SPEC Rear Charge 1-10 Twist 1/2x36 Thread Free-Float Nitride Black. . Formulated using some of the very most heavy duty and dependable resources around these AR15 Upper Receivers via FM Products can provide an item which will give many years of dependability. FM Products has been making top quality merchandise for a very long time and the FM Products MIL-SPEC Rear Charge Mike-9 9mm Luger 5inch Upper Receiver is their manner of revealing how much they care. At OpticsPlanet we make it our responsibility to purchase the most suitable solution for all of your specifications and presenting the FM Products MIL-SPEC Rear Charge Mike-9 9mm Luger 5inch Upper Receiver is one thing that we're delighted to offer. Specifications for FM Products MIL-SPEC Rear Charge Mike-9 9mm Luger 5inch Upper Receiver: Manufacturer: FM Products Caliber: 9mm Luger Overall Length: 23.75 in Barrel Length: 16 in Barrel Profile: Light Weight Barrel Twist Rate: 1-10 Threads per Inch: 1/2x36 Finish: Type III Hardcoat Anodized Color: Black Fabric/Material: Aircraft Aluminum Condition: New Magazine Included: No Package Contents: FM Products Rear Charge Mike-9 9mm Luger 5inch Upper Receiver FM Products MIKE9U-R1615-4: MIKE-9 9mm Complete Upper Receiver 23.75 inch 16 inch Barrel MIL-SPEC Rear Charge 1-10 Twist 1/2x36 Thread Free-Float Nitride Black