PTR-91 A3S | .308 Win | 18″ | 20rd

The PTR-91 A3S is a semi-automatic modern sporting rifle chambered for .308 Winchester (7.62×51 NATO) with an 18″ tapered barrel and welded Picatinny scope mount. It pairs traditional HK-style ergonomics and polymer furniture with a threaded muzzle and a 20-round detachable magazine, providing a familiar platform for shooters who prefer larger-bore semi-auto rifles. For an optic under $1,000 that complements the PTR-91 A3S, consider the Vortex Viper PST Gen II 2-10×32 for a versatile sight-picture across extended ranges.

Product Specifications

• The caliber is listed as .308 Winchester (7.62×51 NATO).
• The action is a semi-automatic delayed blowback roller-lock system.
• The barrel measures 18 inches and is described as tapered.
• The rate of twist is 1:10″.
• The overall length is 40.5 inches.
• The magazine capacity is 20 rounds using a detachable magazine.
• Sights are listed as included with the rifle.
• The stock material is synthetic (black polymer).
• The finish is described as black powdercoat / black.
• The muzzle is threaded 5/8″-24 tpi for muzzle devices.
• The rifle uses a delayed blowback roller-lock operating system.
• Included accessories are one magazine, a polymer rifle case with foam insert, and a trigger lock.
• The product type is listed as rifle (modern sporting rifle).
• The UPC is 897903002718.
• State restrictions are noted as no direct ship or sale to certain states (see manufacturer restrictions).

The PTR-91 A3S is built for shooters who want a substantial .308 platform with familiar ergonomics and a welded scope rail for optics. Its threaded barrel and 20-round detachable magazine make it adaptable for a range of sighting and accessory options, while the synthetic furniture keeps the profile practical for field transport. The rifle is appropriate for precision-target work and medium to large-game field use where a semi-automatic .308 platform is preferred.