The Century Arms CA-3 is a semi-automatic rifle assembled in the United States from surplus G3 parts supplemented with new components manufactured by PTR. Chambered for 7.62×51 NATO (.308 Win), the CA-3 retains the original roller-delayed blowback system and traditional G3 ergonomics. The configuration includes an 18-inch threaded barrel with a 1:10 twist and original surplus features such as a fixed stock and rotary aperture rear sight.
Key Specifications
- The rifle is chambered in 7.62×51 NATO (.308 Win).
- The action uses a roller-delayed blowback operating system.
- The barrel measures 18 inches.
- The barrel threads are 5/8×24.
- The barrel has a 1:10 right-hand twist rate.
- The receiver is stamped steel and is compatible with claw-style optic mounts.
- The stock is a synthetic fixed design with surplus-style polymer grip.
- The rifle weighs approximately 9.5 pounds.
- The overall length measures 40.5 inches.
- The muzzle device is a birdcage-style flash hider.
The CA-3 blends historical surplus character with modern replacement components, offering a platform that appeals to collectors and shooters who appreciate classic G3 design and proven mechanical principles. Its 18-inch threaded barrel and traditional sighting layout make it suitable for range work and historical interest where a robust, serviceable rifle is desired.
Product information is supplied by the manufacturer and/or distributor and may be automatically formatted or enhanced using AI for clarity and consistency. While we strive for accuracy, specifications, features, and included items may change without notice. Always verify details using the manufacturer’s official documentation and the information shown on this product page before purchase or use.




