Century Arms CA-3 7.62×51 NATO 18in Threaded 20+1

The Century Arms CA-3 is a semi-automatic rifle built from a mix of original G3 surplus components and American-made replacement parts. Chambered in 7.62x51 NATO with an 18-inch threaded barrel and a 20+1 capacity, the CA-3 retains the roller-delayed blowback operating system. It comes with a fixed synthetic stock and adjustable front sight with a rotary-aperture rear sight for practical use on the range or as part of a historical collection.

Key Specifications

• Chambered in 7.62x51 NATO (.308 Win).
• Barrel measures 18 inches and is threaded for muzzle devices.
• Standard capacity listed as 20+1.
• Operates as a semi-automatic using a roller-delayed blowback system.
• Barrel twist is specified as 1:10 right-hand.
• Barrel threads are listed as 5/8x24.
• Muzzle device is a birdcage-style flash hider.
• Overall weight is listed as 9.5 lbs.
• Equipped with a fixed synthetic stock and surplus-style grip.
• Features a stamped steel receiver and original-style adjustable sights.

The CA-3 blends the heritage of the G3 design with modern replacement components for a durable, familiar platform suitable for range use, precision practice, or collection. Its threaded 18-inch barrel and standard magazine capacity provide flexibility for accessory mounting and typical field applications while retaining the character of surplus parts.