DDM4 ISR 300BLK 16" MILSPEC+ 02-103-15139-047 Manufacturer Model Number: 02-103-15139-047 Manufacturer: Daniel Defense Model: DDM4 ISR Caliber: 300 AAC Blackout Type: NFA - Silencer Item Type: NFA Firearm / Accessory Action: Semi-Auto Finish: Mil Spec + Cerakote Sights: No Sights Stock Frame Grips: Collapsible / Folding Stock DD Furniture Magazine Quantity and Description: 1 Overall Length: 31.5" - 34.75" Weight: 7.6 lbs. Shipping Weight: 13.65 Feature: Modular Float Rail (MFR) 12.0 Feature: ISR Integrated Gas Block Feature: Classified as Silencer(11.9") Optic Adjustable Objective: false Optic Reticle Illuminated: false