Century Arms C93 Sporter 5.56x45mm 16” Semi-Auto Roller Delay Rifle
SOLD FOR: $1,452.00
LSB#: LSB260221TP005
Make: Century Arms Inc.
Model: C93 Sporter
Serial Number: C9300 643
Year of Manufacture: Modern
Caliber: 5.56x45mm NATO
Action Type: Semi-Automatic, roller delay blowback operated rifle fed by detachable magazines.
Markings: The right side of the magwell is marked with the Century Arms rollmark. The top of the receiver is marked with the serial number. The trigger housing is marked, “S F”
Barrel Length: 16”, 17.5” w/ flash hider.
Sights / Optics: The front sight is a hooded post set into the triple frame. The rear sight is a four-position rotating diopter drum fixed to the receiver. There is a lug and mounting points for an optic/rail built into the receiver.
Stock Configuration & Condition: This rifle has a three piece black polymer furniture set with a bipod cut textured handguard w/ 3-point sling attachment on the left side, folding carry handle, non-grooved pistol grip, and dropped comb stock with a serrated plastic buttplate. There are light to moderate scratches and pressure dents throughout. There are no chips or cracks. The LOP is 13.75” from the front of the trigger to the back of the buttplate. Overall this furniture set is in about Very Good condition.
Magazine Quantity & Condition: 4x 30rd 5.56 Magazines in Good condition.
Type of Finish: Parkerized
Finish Originality: Original
Bore Condition: The bore is bright and the rifling is sharp. There is no visible erosion in the bore but there is some faint stubborn fouling. In this writer’s opinion the bore rates 9.75/10.
Overall Condition: This rifle retains about 99% of its metal finish. There are faint scratches and wear marks throughout. The pins are unmarred. The markings are clear. Overall, this rifle rates in about Excellent condition.
Mechanics: The action functions correctly. We did not fire this rifle. As with all used firearms, a thorough cleaning may be necessary to meet your maintenance requirements. The bolt gap is 6 thousandths.
Box, Paperwork & Accessories: 4x Magazines.
Our Assessment: The Century Arms C93 Sporter is a semi-automatic rifle patterned after the HK93, itself derived from the legendary G3 platform designed by Heckler and Koch. Central to this system is the roller-delayed blowback action, a mechanically distinctive design that uses precisely timed resistance to delay bolt movement, allowing the rifle to safely cycle without a traditional gas system. Chambered in 5.56x45mm NATO, a cartridge introduced in the mid-20th century and widely adopted for its flat trajectory and controllable recoil, the C93 Sporter offers a balance of performance and handling in a civilian-legal configuration. The 16 inch barrel with flash hider and classic HK-style controls preserve the lineage of this proven design while adapting it for modern sporting use. This example remains in excellent overall condition, retaining approximately 99 percent of its original parkerized finish with only faint handling marks visible. The bore is bright with sharp rifling and only minor fouling, supporting strong performance. The black polymer furniture set shows light to moderate cosmetic wear in the form of scratches and pressure marks but remains structurally sound with no cracks. Features such as the bipod-cut handguard, integrated sling attachment, and folding carry handle add to the rifle’s practical configuration. The rifle is equipped with the classic hooded front sight and four-position rotating diopter rear drum, providing a precise and repeatable sight picture.
The C93 Sporter reflects the enduring appeal of the HK roller-delayed system, combining robust engineering with a recognizable and proven design. Its strong condition, complete configuration, and included magazines contribute to its overall utility and presentation. As a civilian adaptation of a well-established military pattern, it stands as a representative example of a platform that continues to hold relevance for its mechanical simplicity, reliability, and distinctive operating characteristics. -R.E.