SIG716i TREAD
SIG Sauer Inc. · Battle Rifle · In Production · 2020
Also known as: SIG Sauer 716i Tread, 716i TREAD
Overview
The SIG716i TREAD is SIG Sauer's direct gas impingement AR-10-pattern semi-automatic battle rifle chambered in 7.62x51mm NATO, part of the optics-ready, ready-to-customize TREAD product line. It pairs forged aluminum upper and lower receivers with a 16-inch carbon-steel nitride barrel, a 15-inch free-float M-LOK handguard, a three-prong flash hider, ambidextrous lower controls, and a Magpul SL-K collapsible stock.
Specifications
| Weight (empty) | 3690 g (130.2 oz) |
| Overall Length | 953 mm (37.52") |
| Folded Length | 873 mm (34.37") |
| Barrel Length | 406 mm (15.98") |
| Action Type | Gas Operated Direct Impingement |
| Firing Mechanism | Hammer Fired |
| Trigger Type | Single Stage |
| Trigger Pull | 27 N (6.1 lbf) |
| Magazine Capacity | 20 rounds |
| Magazine Type | Detachable Box |
| Muzzle Velocity | 884 m/s (2900 fps) |
| Barrel Rifling | Right Hand |
| Rifling Twist | 254 mm (10.00") |
| Frame Material | Aluminum |
| Barrel Material | Steel |
| Stock Material | Polymer |
| Finish | Hard Anodized |
Calibers
- 7.62x51mm NATO · primary · 7.62x51mm NATO — also known as .308 Winchester, 7.62mm NATO, 7.62x51mm
Features
- Firing modes: Semi Automatic
- Feed systems: Detachable Box Magazine
- Safety mechanisms: Manual Thumb Safety
- Features: Direct Gas Impingement, M Lok Free Float Handguard, Three Prong Flash Hider, Ambidextrous Controls, Magpul Sl K Collapsible Stock, Full Length Picatinny Top Rail, Nitride Barrel, Forged Aluminum Receiver
Base model
Production
Production years: 2020-present
Origin
Country of origin: United States
Notes
The 'i' suffix denotes the direct (improved) impingement operating system that distinguishes it from the heavier, piston-driven original SIG716. Trigger spec is conflicting across sources: tested units measured a single-stage ~6 lb 2 oz pull, while some SIG marketing cites a two-stage Matchlite Duo. Effective range not authoritatively published.
Background
The SIG716i extended SIG's value-priced TREAD line into .30 caliber in 2020; it is the civilian sibling of the piston-driven SIG716 supplied under SIG's 2019 contract to provide roughly 72,400 rifles to the Indian Army.