SIG Sauer M400 Forge Semi-Automatic Rifle 5.56mm NATO 16″ Barrel Gray 30+1

The SIG Sauer M400 Forge delivers a refined, mil-spec-inspired AR-15 platform built for serious shooters who demand reliability, precision, and durability out of the box. Chambered in 5.56mm NATO, this semi-automatic rifle features a 16-inch barrel and a 30+1 round capacity, making it equally at home on the range, in competition, or as a centerpiece of your home defense setup.

Engineered with SIG Sauer’s hallmark attention to detail, the M400 Forge is built on a forged aluminum upper and lower receiver for exceptional strength-to-weight ratio and long-term durability. The gray finish gives it a distinctive, tactical aesthetic that sets it apart from standard black rifles. Whether you’re a first-time AR buyer looking for a trusted brand or an experienced shooter adding to your collection, the M400 Forge delivers the quality and consistency SIG Sauer is known for worldwide.

Key Features:
• Caliber: 5.56mm NATO
• Barrel Length: 16 inches
• Capacity: 30+1 rounds
• Forged aluminum upper and lower receivers
• Gray finish for a distinctive tactical look
• Semi-automatic operation
• Reliable gas-impingement system
• Built to SIG Sauer’s strict quality standards

At Deep Roots Rifle Co, we stock hard-to-find firearms from the brands you trust — and the SIG Sauer M400 Forge is no exception. Order online with fast shipping to your FFL dealer, or stop into our Eustis, Florida gun store where our knowledgeable staff can help you find the perfect rifle for your needs. Competitive pricing, expert guidance, and a passion for the shooting sports — that’s the Deep Roots difference.