SCR makes for a compliant rifle in many locales, while still providing a capable and robust rifle platform. Plain, non-threaded muzzle Caliber: 5.56mm NATO Weight: 6.2 lbs. OAL: 37.75" Barrel: 4140 Chromoly, 16.25" 1/9 Twist Bolt: Mil Spec Carpenter 158 Receivers: Captive push pin takedown Aerospace grade 7075 T6 forgings Stock: Available in various laminated finishes and walnut LOP: 14.5" Handguard: Aluminum MLOK Finish: Aluminum Mil A 8625F Black Hardcoat Anodize Steel Finish MilSpec Manganese Phosphate. Magazine: 5 RD (Can accept any AR15/M16 Magazine) Origin: 100% Made in USA Includ Mfg: Fightlite Industries