SOLD FOR: $8150
Make: Swiss Arms
Model: SG 550-1SP
Serial Number: 80068
Year of Manufacture: Modern
Caliber: 5.56 x 45
Action Type: Semi-Auto, Short Stroke Gas Operated
Markings: The left side of the receiver is marked “SIGARMS INC. Herndon VA / SG 550-1SP 80068 Made in Switzerland” with a backwards BP proof. The left side of the lower receiver is marked “0068”. The bolt carrier is marked “0068”. The selection options are marked “S 1”. The top of the receiver is marked with a Swiss Plus and the buttstock is marked “SIG”.
Barrel Length: 19.25”. 20.75” with birdcage flash hider.
Sights / Optics: The front sight is a hooded post with flip up night sight. The rear sight is a diopter rear sight with 4 sight options. One sight option is fitting with a target aperture sight.
Stock Configuration & Condition: The buttstock is a folding stock with rubber buttpad. The handguard and pistol grip are polymer. The grip is serrated with a storage compartment. The handguard has venting ports and cutouts for the attached bipod. The gas block is adjustable and has a sling ring on the left side. The stock rates in about Very Good overall condition.
Magazine Quantity & Condition: One 20rd 5.56 factory magazine in Excellent condition.
Type of Finish: Grey, Green Polymer
Finish Originality: Original
Bore Condition: The bore is bright and the rifling is sharp. There is no visible erosion in the bore.
Overall Condition: This rifle retains about 99% of its metal finish. The balance of the finish shows minor operation wear from responsible use and storage. The screw heads are sharp and 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.
Box, Paperwork & Accessories: The rifle comes with one magazine and rear sight cover.
Our Assessment: The Sig Arms SG 550-1SP is a variant of the iconic Swiss SG 550 series, rifles renowned for their exceptional quality, durability, and accuracy. Originally developed by Schweizerische Industrie Gesellschaft (SIG), now known as Swiss Arms, these rifles have been serving in the Swiss Army since the 1980s and have earned their reputation as one of the most reliable firearms in existence. The “SP” in 550-1SP stands for “Special Purpose,” indicating that this version is tailored for specific operational requirements, often involving long-range precision shooting or specialized tactical roles.
Constructed to exacting Swiss standards, the SG 550-1SP features a gas-operated, piston-driven system with a rotating bolt, ensuring reliable cycling even under adverse conditions. Notably, the firearm allows users to adjust the gas system for different types of ammunition or environmental circumstances. The barrel is cold-hammer forged for enhanced longevity and superb accuracy, typically exhibiting performance that rivals many bolt-action rifles in similar calibers.