The SIG Sauer SIG516 G3 Rifle represents the next evolution of the proven 516 platform—delivering unmatched reliability, durability, and performance in a modern piston-driven AR system. Built from over a decade of real-world feedback and refined in New Hampshire, the SIG516 G3 is engineered to excel in the harshest environments.

At its core is a short-stroke gas piston system with an adjustable gas regulator, allowing shooters to fine-tune performance for different ammunition types or operating conditions. This system reduces fouling and heat in the receiver, enhancing long-term reliability compared to traditional direct impingement rifles.

The rifle features a 16-inch cold hammer-forged barrel with a 1:7 twist rate, optimized for accuracy and durability across a wide range of bullet weights. A SIG flash hider compensator reduces muzzle rise and flash signature, improving control and visibility during rapid fire.

Designed for maximum versatility, the SIG516 G3 includes fully ambidextrous controls—bolt catch, magazine release, safety selector, and dual non-reciprocating charging handles (rear and side)—ensuring seamless operation for any shooter in any condition. The free-floating M-LOK handguard provides ample space for accessories while maintaining a lightweight and rigid platform.

Durability is further enhanced with steel-reinforced high-wear components, including the cam path and feed ramp, ensuring long-term performance under demanding use. The Matchlite Duo curved trigger delivers a crisp, consistent break for improved accuracy.

Whether for duty, training, or serious range use, the SIG516 G3 sets a new benchmark for piston-driven AR rifles—combining battle-proven reliability with modern enhancements for today’s shooter.