Other Details Manufacturer: Sig Sauer Manufacturer Part Number: RMCX-556N-16B-FDE-10 Accessories: 1 Magazine Action: Semi-Auto Barrel Length: 16" Caliber/Gauge: .223 REM/5.56 NATO Capacity: 10 Color: Flat Dark Earth Description: M-LOK Finish: Cerakote Grip Material: Sig Sauer Model: MCX Product Type: AR Stock Type: Sig MCX Folding Subcategory: Modern Sporting Rifles