Description

The SIG Sauer SIG716 is a battle-rifle-style semi-automatic rifle built on an AR-10 platform and chambered in 7.62×51 mm NATO / .308 Win. It takes the proven ergonomics and modularity of modern AR-style rifles and combines them with the power and range of a full-power cartridge, making it suitable for tactical, patrol, and general-purpose use. Various configurations (including the TREAD and G2 variants) offer choices in gas system, barrel length, and trigger options.

Specifications

• Manufacturer: SIG Sauer
• Model: SIG716 (AR-10 style rifle, multiple variants exist)
• Caliber: 7.62×51 mm NATO / .308 Winchester
• Action: Semi-automatic (civilian); select-fire available on some military/LE models
• Operating System:
  • Short-stroke gas piston (G2/Patrol/Marksman variants) – reduces fouling for reliability
  • Direct impingement (i716/TREAD variants) – lightweight and traditional AR-platform system
• Barrel Length: Commonly ~16″ (varies by specific model)
• Twist Rate: Approx. 1:10″ for .308/7.62 NATO stabilization
• Handguard: Free-floating aluminum with M-LOK or Picatinny rail compatibility
• Stock: Adjustable/telescoping (varies by variant)
• Trigger: Single-stage or two-stage match (variant dependent)
• Magazine Compatibility: AR-10/SR-25 pattern detachable box magazines (~20 rounds typical)
• Sights: Usually optic ready with top rail; flip-up iron sights optional/variant dependent
• Muzzle: Threaded 5/8″-24 TPI on many models for muzzle devices/suppressors
• Overall Length: ~37″ with 16″ barrel (varies with stock position)
• Weight: Approx. 8.5–9.3 lb (8.5 lb typical for TREAD)
• Finish: Black hard-coat anodized or variant finishes depending on model
• Distinctive Features:
  • AR-10 pattern power in a modular platform
  • Free-floating barrel and accessory rails for optics and attachments
  • Options for both piston and direct impingement gas systems to suit preferences.