Zev Muzzle Device, 556NATO, Black, 1/2X28 ZMD-556 Available to order on-line. Ships in 5-14 days $79.00 MSRP Price: $75.05 Description Details Reviews Shipping info ZEV Technologies Muzzle Device, 556NATO, Black, 1/2X28 ZMD-556 UPC: 811338036551Manufacturer: Zev TechnologiesModel: ZMD-556Caliber: 5.56x45mm NATOCategory: PartsOtherMisc AR-15 PartsStock: Ships in 5-14 business days.Unit/Measure: ea This item may be shipped directly to your home address, unless you live in a restricted state.