SIG Sauer Tread

Sig Sauer M400 TREAD coil.

The SIG Sauer M400 TREAD COIL is the most recent addition to the expanding line of TREAD products (as of this writing). They say this new rifle is an enhanced version of the popular M400 TREAD Rifle with the most popular TREAD branded accessories including the ROMEO5 TREAD Red Dot sight, match trigger, lightweight handguard, and vertical foregrip that come factory installed.

“The Sig Sauer M400 TREAD is a step in the right direction when it comes to entry-level AR15 platform rifles. The rifle utilizes a mid-length direct impingement operating system and comes standard with features usually only found on premium priced rifles. The upper and lower receiver of rifle are made from aircraft grade 7075 aluminum and have been hardcoat anodized for long lasting durability.” Europtic

Based on its predecessors, the M400 TREAD rifle, the 11” TREAD Pistol, and the 716i TREAD, the M400 TREAD COIL semi-auto rifle is chambered in 5.56 NATO and comes with a 30-round AR-15 type polymer magazine. The stock is a MAGPUL SL-K Telescoping Stock and an M-LOK accessory rail.

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According to Sig, the M400 TREAD Coil is outfitted for out-of-the-box performance, fully configured with some of the top Tread accessories.

Tom Taylor, Chief Marketing Officer, and Executive Vice President, Commercial Sales said, “Just like its predecessors, the M400 TREAD COIL combines innovation and value. This rifle is unique because it comes with a factory-installed red dot optic, making it ready to go right out of the box, along with other popular features that until now, were only available through an accessory purchase. The M400 TREAD COIL delivers the freedom to have an enhanced TREAD rifle right from the store with a very advantageous price that makes this an exceptional value to the consumer.”

M400 Tread Coil


The M400 TREAD COIL is an aluminum frame rifle with a 16” stainless steel barrel featuring a factory-installed and zeroed ROMEO5 TREAD optic, a lightened free-float M-LOK™ 13” TREAD handguard, a TREAD Matchlite™ Duo trigger, TREAD vertical foregrip, telescoping stock, 3-prong flash hider, ambidextrous controls, and is chambered in 5.56 NATO.

M400 TREAD COIL Specs:
• Overall Length: 30.8”
• Overall Height: 7.5”
• Overall Width: 2.5”
• Barrel Length: 16”
• Barrel Twist: 1:8”
• Weight (incl. magazine): 7lbs.

Additional TREAD accessories for this rifle include: a 3-chamber compensator; an ambidextrous charging handle made of aircraft-grade aluminum; flip-up front and rear iron sights that are easy to install, adjustable, and deploy quickly; an M-LOK front sight adapter with co-witness height made of lightweight aluminum; and multiple configurations of M-LOK grip kits made of high-strength polymer.

M400 TREAD Branded Accessories Specs:
• M-LOK Handguard 10.5” $149.00
• M-LOK Handguard 15” $149.00
• Adjustable Flip-Up Sights $149.00
• Ambidextrous Charging Handle $49.00
• 3-Chamber Compensator $49.00
• M-LOK Front Sight Adapter $29.00
• M-LOK Hand Stop Kit $29.00

Update: January 27, 2021

SIG SAUER 716i TREAD Receives 2020 Ballistic Best Reader’s Choice Award for Best AR-10 Rifle

Sig Sauer, Inc. just announced the SIG 716i TREAD has been recognized with a 2020 Ballistic Best Reader’s Choice Award for “Best AR-10 Rifle.”  The Ballistic Best Reader’s Choice Awards from Athlon Outdoors gives consumers the ability to vote for recognition of superiority in class, quality, and innovation across various product categories.

“We are very proud to have the 716i TREAD rifle honored with this Ballistic Best Reader’s Choice Award.  The TREAD brand continues to gain recognition for offering premium products, at a competitive price point, that are designed, engineered and built with the same quality and innovation consumers expect from any SIG SAUER product,” said Tom Taylor, Chief Marketing Officer and Executive Vice President, Commercial Sales.  “The 716i TREAD is a lightweight rifle that brings the power of an AR-10 platform with premium features right out of the box and, like all TREAD series rifles, is easily customizable with a full-line of purpose-built TREAD branded accessories.”
The SIG 716i TREAD is a lightweight, forged aluminum receiver, direct impingement rifle that comes optics ready and features a precision nitride coated, carbon steel barrel, an ambidextrous lower receiver, a free-floating M-LOK handguard, a 2 stage Matchlite Duo Trigger, a six-position adjustable stock, and comes chambered in 308 WIN. 

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