Century Arms CA-3 | 7.62x51mm | 18″ | RI5601A-X

The Century Arms CA-3 is a semi-automatic rifle assembled using surplus G3 components with American-made parts supplied by PTR. It is offered in listings chambered as 7.62x51mm NATO / .308 Winchester with an 18-inch threaded barrel and a 20-round magazine configuration noted in product information. For a durable, mid-priced optic that pairs well with this platform, consider the Vortex Viper PST Gen II 1-6×24 for precise low- to mid-range shooting under $1,000.

Product Specifications

• The manufacturer is listed as Century Arms.
• The model designation is CA-3.
• The manufacturer part number is RI5601A-X.
• The UPC is 787450953239.
• The rifle is chambered in 7.62x51mm NATO / .308 Winchester.
• The barrel measures 18 inches and is described as threaded.
• The listed magazine capacity is 20 rounds (20+1 appears in some listing text).
• The receiver is described as a stamped steel receiver.
• The rifle is assembled with American-made components by PTR.
• The rifle includes original surplus parts referenced as front sight, rotary aperture rear sight, trigger group, bolt, and bolt carrier.
• Listings reference a flash hider and threaded muzzle; some descriptions reference an A2 birdcage flash hider or other surplus-style muzzle devices.
• Color and furniture are listed as Black and OD Green across different listings.
• Condition is described in some sources as surplus grade, with condition varying between units.

This CA-3 blends surplus G3 components with modern, American-made replacement parts to deliver the classic G3 ergonomics and features in a field-ready package. Its 18″ threaded barrel and standard G3-style sights make it suitable for medium-range precision and vintage-military restorations, while the use of surplus parts preserves authentic character. The rifle’s configuration and finish vary between listings, so the specific unit may differ in furniture color and stock type.

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