Description

The SIG Sauer SIG516 G3 is a modern semi-automatic AR-pattern rifle chambered in 5.56 × 45 mm NATO. It builds on the proven SIG516 piston-driven design with a short-stroke gas piston system and adjustable gas settings for reliable performance with a variety of loads and suppressed use. The 16-inch cold-hammer-forged barrel, free-floating M-LOK handguard, fully ambidextrous controls, and premium components like the SIG Matchlite DUO trigger and SIG flash hider make it a versatile option for tactical, duty, and range applications.

Specifications

• Model: SIG Sauer SIG516 G3 (16″)
• Caliber: 5.56 × 45 mm NATO
• Action: Semi-automatic
• Operating System: Short-stroke piston with adjustable gas system 
• Barrel Length: 16 inches (cold-hammer-forged)
• Twist Rate: 1:7″ RH
• Thread Pattern / Muzzle Device: 1/2-28 tpi with SIG flash hider-compensator
• Handguard: Free-floating M-LOK
• Controls: Fully ambidextrous (safety, charging handle, bolt catch/release, mag release)
• Charging Handle: Rear and side non-reciprocating
• Trigger: SIG Matchlite DUO curved trigger
• Stock: 6-position Magpul™ DT collapsible
• Grip: Reduced-angle AR-compatible
• Magazine Capacity: 30 + 1 rounds (standard AR magazine)
• Receiver: Alloy with black anodized finish
• Accessory Rails: Full Picatinny top plus M-LOK slots
• Overall Length: ~32.6″ – 36.0″ (stock collapsed/extended)
• Weight: ~7.8lbs (~3.5 kg)
• Finish / Color: Black anodized.