SIG Sauer SIG 556R 7.62×39 16” Semi-Auto Rifle AK47 Magazine Compatible
SOLD FOR: $1,875.00
LSB#: WY250323AL002
Make: Sig Sauer Inc.
Model: SIG 556R
Serial Number: 28C 007812
Year of Manufacture: Modern
Caliber: 7.62×39
Action Type: Semi-Automatic, Adjustable Short Stroke Gas Operated
Markings: The left side of the receiver is marked “28C 007812”, “SIG556R, 7.62X39, SIG SAUER INC., EXETER, NH, USA”, and “S” and “F”. The right side of the receiver is marked “S” and “F” near the ambidextrous safety. The left side of the pistol grip is marked “SIG SAUER”. The barrel is marked “7.62X39 1/9.5”.
Barrel Length: 16”. 17” with fixed A2 flash hider.
Sights / Optics: This rifle comes with a Troy BUIS set attached to the full length picatinny rail. There are integral flip-up sights set into the rail.
Stock Configuration & Condition: The pistol grip and folding stock synthetic with an aluminum quadrail forend. There are Ergo ladder rail covers on the left, right, and bottom rails. The pistol grip has a trap for storage. There are no chips or cracks. There are some light scratches. The LOP measures 13.25” from the front of the trigger to the back of the unfolded buttstock. The stock rates in about Excellent overall condition.
Magazine Quantity & Condition: None.
Type of Finish: Anodized Black
Finish Originality: Original
Bore Condition: The bore is bright and the rifling is sharp. There is no erosion in the bore. In this writer’s opinion the bore rates 9.5/10.
Overall Condition: This rifle retains about 98% of its metal finish. There are light handling and wear marks throughout. There is some finish loss around the magwell. The screw heads are sharp and the pins are unmarred. The markings are clear. Overall, this rifle rates in about Very Good 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.
Box, Paperwork & Accessories: None.
Our Assessment: The SIG Sauer 556R is a robust and modern take on the classic Swiss SIG 550 series, chambered in the widely available 7.62x39mm cartridge and designed to accept standard AK-47 magazines. Built with a forged aluminum receiver, a monolithic full-length top rail, and an adjustable short-stroke gas piston system, the 556R blends European precision with AK-style versatility and reliability. Its compatibility with AK magazines and rugged construction make it a standout choice for shooters who want enhanced accuracy and modularity without sacrificing the rugged performance of the 7.62×39 round. This example is in very good condition, retaining about 98% of its original black anodized finish. There are minor handling marks and light finish loss around the magwell. The bore is bright with sharp rifling and no erosion, rating a solid 9.5/10. It features a 16-inch barrel with an A2-style flash hider, bringing the total length to 17 inches. The rifle is fitted with a quad-rail aluminum forend, ladder rail covers, a folding stock, and Troy backup iron sights mounted on the full-length top rail. Additionally, it includes integrated flip-up sights as part of the receiver rail. The polymer grip is in excellent condition and includes a storage compartment.
The SIG 556R is an excellent option for those seeking a high-end 7.62×39 rifle with modern ergonomics and AK magazine compatibility. Its folding stock, high-quality construction, and modularity make it suitable for tactical use, range shooting, or collection. Though no magazine is included, it remains a highly desirable rifle with strong practical and collector appeal. -R.E.
