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Short Stroke Gas Piston System
Fully Ambidextrous Controls
Integral QD Sling Mounts
Locking Flip-Up Battle Sights
Lancer L5 30-Round Magazine
Modern warriors needed an AR-15 weapon that can overcome the harshest tactical environments. So SIG Sauer replaced the traditional gas impingement system with a cleaner, easier-to-maintain, short-stroke piston. Then they added true ambidextrous controls and refined everything from barrel to grip. The result is the ruggedly dependable SIG516. The SIG516 Carbon features a fixed A1-length buttstock a rail adaptable extended forend, both with a unique carbon fiber finish. Locking flip-up front and rear sights, integral ambidextrous QD sling mounts, and a Lancer L5 30-round magazine are standard equipment.