HALCYON 22LR 1/2x28 SILENCER Manufacturer Model Number: 64283 Manufacturer: AAC (Advanced Armament) Model: Halcyon Caliber: 22 LR Type: NFA - Silencer Item Type: NFA Finish: Black PVD Overall Length: 3.41" - 5.8" Weight: 4.5 - 6.1 oz. Shipping Weight: 0.85 Feature: 22LR, 17HMR, 22Mag, 5.7X28mm Feature: Uses Thread Inserts Feature: Modular Design Optic Adjustable Objective: false Optic Reticle Illuminated: false