CGS SCI SIX 5.56 SILENCER CGS-SCISIX Manufacturer Model Number: CGS-SCISIX Manufacturer: CGS Group Model: SCI-SIX Caliber: 223 Rem | 5.56 NATO Type: NFA - Silencer Item Type: NFA Finish: Black Overall Length: 6.5" Weight: 17 oz. Shipping Weight: 2.0 Feature: DMLS 3d Printed Body Feature: No Barrel Length Restriction Feature: Mount Included Optic Adjustable Objective: false Optic Reticle Illuminated: false