Browse the selection of options & features with SIG SAUER's collection of M400 and SIG M400 TREAD variants; direct impingement operating system, AR 15 platform.

The M400 is an air-cooled, direct impingement gas-operated, magazine-fed carbine based on the earlier AR-15 rifle. [2] It is chambered for either 5.56×45mm NATO or .300 AAC Blackout …

The Sig M400 is an excellent firearm for new and experienced shooters alike, offering a high-quality build and smooth performance. With its modular AR-15 platform, the M400 is easy to …

3 days ago · The SIG M400 is a popular AR-15 rifle (and one of our favorites) that is known for its accuracy, reliability, and value. It is a great choice for both beginners and experienced shooters.

Online shopping from a great selection of discounted M400 at Sportsman's Outdoor Superstore.

This combination of standardized features makes the M400-SENTRY an out-of-the-box solution for home/personal defense, advanced training or recreational shooting. Like other rifles in the …

With its combat-proven lineage, user-driven enhancements, and future-ready architecture, the SIG SAUER M400 is the ultimate AR platform for those who refuse to compromise on …

Featuring a lightweight and rigid free-floating M-LOK® enhanced handguard, the SIG SAUER® M400 Tread V2 Semi-Auto Rifle provides exceptional control and lets you easily mount …

Building upon their decades of experience and countless hours of instruction, we have developed the M400-SDI X to meet the highest standards of performance and reliability.

Chambered in 5.56 NATO, the M400-TREAD has a 16” stainless steel barrel offering extreme durability and corrosion resistance while improving accuracy. The barrel is also fitted with a 3 …