HEXIUM 556 SILENCER INCONEL HEXIUM556INC Manufacturer Model Number: HEXIUM556INC Manufacturer: SIG SAUER Model: Hexium 556 Inc Caliber: 223 Rem | 5.56 NATO Type: NFA - Silencer Item Type: NFA Finish: Black Cerakote Overall Length: 5.9" Weight: 19 oz. Shipping Weight: 0.0 Feature: HUB Taper Direct Thread Mount Feature: End Cap Mounting System Feature: 3D Printed Inconel Core Optic Adjustable Objective: false Optic Reticle Illuminated: false