The Remington Nylon 66 is a semi-automatic, blowback-operated rifle chambered for .22 Long Rifle ammunition, produced by Remington Arms from 1959 to 1989. It features a synthetic stock made from DuPont's Nylon 66 material, which is lightweight, waterproof, and resistant to wear and tear. The rifle is known for its unbreakable construction and has been popular for plinking, small game hunting, and target shooting.