Century Arms C93 Sporter 5.56x45mm 16” Semi-Auto Roller Delay Rifle
SOLD FOR: $1,801.00
LSB#: LSB260221TP008
Make: Century Arms Inc.
Model: C93 Sporter
Serial Number: C9301 652
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 cracks, but there are a few small chips in the textured paint. 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 40rd 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 7 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 G3 platform developed by Heckler and Koch. At the core of this design is the roller-delayed blowback system, a mechanically distinct action that uses rollers to delay bolt movement, allowing safe operation without a 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 offers practical performance in a familiar and proven layout. The 16 inch barrel with flash hider and traditional HK-style controls maintain the lineage of this 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 scratches and handling marks present. The bore is bright with sharp rifling and minimal fouling, supporting consistent performance. The black polymer furniture shows light to moderate cosmetic wear, including minor scratches, pressure dents, and a few small chips in the textured finish, while remaining structurally sound. Features such as the bipod-cut handguard, integrated sling attachment, and folding carry handle enhance the rifle’s practical configuration. The classic hooded front sight and four-position rotating diopter rear drum provide a precise sight picture.
The C93 Sporter reflects the enduring appeal of the roller-delayed system, combining rugged construction with a distinctive operating method that continues to attract interest. Its strong condition, complete configuration, and included magazines contribute to its overall presentation. As a civilian adaptation of a well-established military pattern, it stands as a representative example of a design that continues to be appreciated for its mechanical simplicity and recognizable profile. -R.E.