SERIAL NUMBER 44.2300 Notes: Action: Semi-automatic Receiver Material: 7075-T6 Aluminum (billet or forged depending on the specific model) Finish: Type III Class 2 hard-coat anodized with a wide variety of custom Cerakote color options Trigger: Mil-Spec, 5.5 to 6 lb pull weight Length: 18 inches Material: 416R Stainless Steel or 4150 Chrome-Moly Vanadium (CrMoV) with a Nitride finish Twist Rate: 1:8" (.223 Wylde) or 1:10" / 1:16" for straight-wall calibers Muzzle Thread & Device: 1/2x28 thread with a standard forward-directed muzzle brake Gas System: Carbine-length gas system with a 0.750" low-profile gas block Handguard: 15.25" to 15.5" Aluminum M-Lok handguard with a full top Picatinny rail Stock: Mil-Spec 6-position adjustable (collapsible) stock Overall Length: Typically 33.25 inches (collapsed) to 36.5 inches (fully extended) Weight: ~6.4 to 6.8 lbs (unloaded) depending on the exact configuration Magazine Capacity: 30-round (5.56/.223) detachable box magazine CONDITION: HAS A SCUFF AT THE TIP OF THE BARREL. PLEASE SEE PHOTOS.