Ontario 490 M9 Bayonet And Scabbard knife is manufactured by Ontario Knife Company in New York. It has a olive green handle and is designed as per Military specifications. It serves as an attachment to M16, M4 and AR-15 rifles. It has a 420 modified stainless steel blade which is 7" in length with 0.235" thickness. The closed size of the knife is 3.79". The LBE belt attachments have a quick release. Its hard sheath has strap down loops and a pivot pin. The knife also has Milled saw teeth on the back. The overall size of the knife is 12.25" and it weighs: 16 oz.