Century Arms C91 Sporter .308 Win Semi-Auto Rifle, HK/G3-Pattern, 18-Inch Barrel, Matte Black
The Century Arms C91 Sporter is a U.S.-made, HK/G3-pattern semi-automatic rifle built on a stamped steel receiver with a roller-delayed blowback system. This example features an 18-inch barrel with a muzzle brake, classic diopter iron sights, and a fixed polymer stock with a 15.0-inch length of pull. It includes one 20-round metal HK/G3-pattern magazine and carries Century Arms factory markings.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: There are markings from previous handling and use. The bore is bright and clean. Refer to the photos for closer detail.
What’s Included
- Century Arms C91 Sporter .308 Win rifle
- 1x 20-round HK/G3-pattern detachable box magazine (metal)
Built on HK/G3-pattern architecture, the C91 Sporter employs a roller-delayed blowback action with a stamped receiver, welded cocking tube, and a forward left-side charging handle. This configuration delivers the familiar manual of arms associated with the platform while maintaining a straightforward, reliable operating system.
The 18-inch barrel is fitted with a muzzle brake and feeds from detachable HK/G3-pattern box magazines. This rifle uses a button-style magazine release, and there is no paddle magazine release present, consistent with the listed configuration.
Sighting is handled by a hooded front post paired with a rotating drum rear diopter, giving precise and repeatable iron sight adjustment. The setup remains faithful to the platform’s proven sighting system.
Furniture includes a fixed polymer stock with a 15.0-inch length of pull and a slim, ventilated polymer handguard. Controls include a manual safety selector, and the rifle is finished in matte black across its stamped steel receiver.
Receiver markings read "CENTURY ARMS INC., GEORGIA, VT USA," and the rifle is noted as made in the United States. Capacity is listed at 20+1 with the included 20-round magazine.