MARINE CORPS BASE QUANTICO, Va. (April 11, 2007) -- Sgt. Jacob Librizzi, instructor at the Small Arms Weapons Instructor School at Marine Corps Base Quantico, Va., teaches a Vintage group member the basics of sight alignment and sight picture while aiming the M-16 A2 service rifle at a target downrange. - MARINE CORPS BASE QUANTICO, Va. (April 11, 2007) -- Sgt. Jacob Librizzi, instructor at the Small Arms Weapons Instructor School at Marine Corps Base Quantico, Va., teaches a Vintage group member the basics of sight alignment and sight picture while aiming the M-16 A2 service rifle at a target downrange.