I have been told they used GI parts are were decent commercial copies. 12 months. This carbine includes one 30 round magazine. Arnold and Penney acquired 15,000-20,000 GI M1 carbine receivers from one of the scrap yards. Numbers were issued sequentially, beginning where Ordnance had left off with serial number blocks assigned during WWII. National Ordnance M-1 Carbine . National Ordnance M1 Carbine. The Auto-Ordnance carbines are produced using newly manufactured parts on high precision computerized machinery. NOTE: These settings will only apply to the browser and device you are currently using. Auto-Ordnance AOM130 – Style # AOM130, Tommy Gun Shop / Firearms. [CDATA[ amzn_assoc_ad_type = "responsive_search_widget"; amzn_assoc_tracking_id = "guncarrier-20"; amzn_assoc_link_id = "QPXW44OOQUK6I5LY"; amzn_assoc_marketplace = "amazon"; amzn_assoc_region = "US"; amzn_assoc_placement = ""; amzn_assoc_search_type = "search_widget"; amzn_assoc_width = 680; amzn_assoc_height = 420; amzn_assoc_default_search_category = "SportingGoods"; amzn_assoc_default_search_key = "auto ordnance m1 carbine accessories"; amzn_assoc_theme = "light"; amzn_assoc_bg_color = "FFFFFF"; // ]]> //