chrome lined barrel - bulged trunnion - 1.5 mm receiver - 5.56x45mm caliber - Semi automatic action - 30 +1 round capacity - 10 cold hammer forged barrel - Stamped steel receiver - Corrosion resistant hard nickle molly steel bolt carrier - Hinged top cover - Bolt hold-open notch on the safety selector - Krinkov style rear post front sights - Synthetic grip - Wood handguard - 19.3 overall length - Weight is 6.6 lbs.