The SIGM400 TREAD is a fully upgradeable AR-15 platform with premium features being offered by SIG Sauer at an unprecedented price point. Owners of the TREAD can configure the platform for mission-specific activities using the TREAD branded accessories with minimal tools or upgrade slowly as budgets allow while still having a very capable rifle.
The TREAD features a 16-inch stainless steel barrel chambered in 5.56 NATO with a 1:8 twist rate. The TREAD also has a mid-length gas system, ultralight micro gas block, three-prong flash hider, full-length free float handguard with M-Lok, ambi safety and mag release, single stage polished and hard coated trigger, ambi QDs, and Magpuls SL-K telescoping buttstock.
Out of the box, the TREAD is a solid AR-15 that can easily be upgraded. Accessories currently available for the TREAD include 13- and 15-inch M-Lok handguards, muzzle brake, ambi charging handle, ROMEO5 optic, flip up iron sights, M-Lok grip kits, and an upgraded single stage trigger.
The TREAD and accessories are suitable for hunting, 3 Gun, home defense, or patrol rifle duty.
MSRP for the TREAD is $951 but you can find them on GunsAmerica for as little as $799.99
Read a complete review of the SIGM400 Tread here!
Visit SIG Sauer for more information.
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As the Editor-in-Chief of GunsAmerica, Hunt365, Decoding Darkness, and Suppressor Academy, True Pearce brings a rare blend of legal expertise, competitive shooting credentials, and deep hunting knowledge to the forefront of the firearms world. A former professional sponsored 3-Gun and Multigun competitor with multiple championships and titles, True’s shooting career began in long-range and tactical sniper matches—and he still burns powder in precision competitions, now branching into Hunter NRL.
A certified firearms instructor who has trained over 10,000 students face-to-face, True has also served on both sides of the courtroom as an attorney and currently as an elected Prosecuting Attorney. He has prosecuted and defended high-profile self-defense and firearms cases, giving him a unique, real-world perspective on the Second Amendment.
Outside the courtroom and off the range, True is a true western outdoorsman. A lifelong hunter and rancher, he rides and hunts off his own string of horses and pack animals, chasing elk, mule deer, wolves, coyotes, and anything else in season. He’s a longtime reloader, producing both precision rifle ammo and, back in the day, handloading over 40,000 rounds of 9mm and 5.56 annually for competition.
He’s also a thermal and night vision expert, known for his obsession with high-end optics, and is rarely found without a camera or a guitar nearby. Whether he’s glassing a distant ridge, reviewing cutting-edge gear, or deep in legal research, True brings passion, precision, and grit to everything he does.
Experience:
– Professional Shooter – Sponsored 3-Gun & Multigun competitor with multiple titles and a foundation in long-range and sniper/tactical matches.
– Firearms Instructor – Certified instructor with over 10,000 students trained face-to-face.
– Elected Prosecuting Attorney – Attorney with real-world experience defending and prosecuting self-defense and gun-related cases.
– Hunter & Rancher – Horseback hunter with a working ranch, passionate about elk, deer, predator, and backcountry hunting.
– Reloading & Ballistics Expert – Precision reloader and former high-volume competition handloader.
– Optics Authority – Known for his deep knowledge and unrelenting standards in optics, thermal, and night vision gear.
– Outdoor Creative – Avid photographer, guitar player, and outdoorsman with a sharp eye for gear and storytelling.
– 2A Advocate – Committed to protecting the Second Amendment and educating Americans about their rights and responsibilities.
Was the Romeo included in the box when you bought it?
Just another AR? And I got a E-mail notification about this article.. Who cares!? Show me something new.
It looks like a nice rifle to add to my collection but does it come “left handed” ?
Nice set up for the $800 price point. The Romeo is about $175 by itself. The only thing I’d change is the trigger but I’d put in a drop in trigger in the 4lb pull range.
Do you have a layaway plan? I love this Beauty! I don’t own any rifles…yet. Plenty of handguns.
Cool rifle. I much prefer a gas piston system. Faxon ARAK-21 has my interest. If you enjoy fouling the chamber area with gas residues that’s cool but for me the AK style action is much more dependable.