Zev Muzzle Device, 556NATO, Black, 1/2X28 ZMD-556 Available to order on-line. Ships in 5-14 days $75.05
Zev Core Complete Forged Upper, 556NATO, 10.5" Barrel, Black Finish, Includes Charging Handle and Bolt Carrier Group UPPER-CORE-556-10.5-B Out of stock. Check back later... $850.25
Zev Core Complete Forged Upper, 556NATO, 16" Barrel, Black Finish, Includes Charging Handle and Bolt Carrier Group UPPER-CORE-556-16-B Out of stock. Check back later... $850.25