Sig Sauer SIGM400 TREAD COIL 5.56x45mm 

Sig Sauer SIGM400

The Sig Sauer SIGM400 TREAD COIL Rifle sets a new standard in performance and value in the AR category. With installed accessories including ROMEO5 Red Dot Sight, 2 Stage Match Trigger, and 13” lightweight handguard, the COIL is the perfect rifle package for the avid user or first-time buyer. Other features of the TREAD COIL include the precision 16” stainless barrel, ambidextrous controls, and 6-position Magpul SL Stock.


The TREAD wears a SIG-­created pistol grip, oversize polymer trigger guard, plus a Magpul SL-­K inventory on the 6-­position receiver extension that highlighted a castle nut properly staked in position.

And, finally, the mid-­size gasoline procedure is thought to be ideal for reliability and diminished recoil inside of a 16-­inch barrel. Pressures are reduce than while in the shorter carbine-­duration gas program and Due to this fact the bolt moves slower, expanding bolt lifestyle and lessening felt recoil.

I specifically grabbed a primary-­technology Magpul PMag as They can be somewhat larger sized than the new types, and as I mentioned the magazine nicely of your TREAD was tight. The Gen one PMag slot in the gun, but it really didn’t drop free of charge when vacant despite whether the bolt was closed or locked open up.

SIG looked at the things they were being offering, when compared it into the Levels of competition, and came up With all the M400 TREAD, intended to supply significantly much better than G.I. “M4” appears to be like and performance at a really aggressive value. The MSRP is just $951, meaning the TREAD are going to be on dealer shelves in all probability in the vicinity of or below $850.

NON-Accredited USED GUNS Non-Accredited made use of guns is usually returned when there is a mechanical defect that happens inside of 3 calendar days of your Actual physical transfer with the firearm to your possession. All other motives for returns on non-Accredited utilized guns are ineligible.

Springfield wasn’t the 1st company To do that, although the Saint was near three hundred dollars below any competing rifle from another significant maker. And it experienced a big influence out there.

SUPPORTED Sig Sauer SIGM400 extractor which will avert system failure in the event you encounter an obstructed bore – which can help retain you Secure!

One more nice feature of the revolver is the fact that it’s comprised of stainless steel and it has a rubberized grip, which means it’s going to be a reasonably difficult gun in tough temperature.

Cartridge5.56x45mm NATO
Capacity30+1 Round
Weight7 Pound
Overall Length30.8 Inches
Barrel Length16 Inches
Barrel ContourFactory
Action TypeSemi-Automatic
Stock TypeCollapsible
Stock MaterialSynthetic
Stock ColorBlack
Trigger TypeTwo Stage
Threaded MuzzleYes
Barrel FinishStainless
Frame MaterialAluminum
Muzzle DeviceThree-Prong
Scope IncludedYes
Frame FinishAnodized
Magazine StyleDetachable
Country of OriginUnited States of America
Included MountsYes

As for the rest of us, the Tread delivers lots of functionality for any stock utility rifle, a sound Create and is supplied for still left-handed shooters in a selling price significantly fewer than any other SIG Sauer AR.

The Tread makes use of a sixteen-inch freefloated, stainless-metal hammer-solid barrel using a lighter-bodyweight profile designed in home.

A symmetrical, a few-prong flash suppressor that dispenses with timing challenges introduced by Several other types caps the threaded muzzle. Far more noticeably, the barrel takes advantage of SIG’s Taper-Lok muzzle thread whereby the shoulder powering the threads is machined at an angle that gives additional frictional Get hold of than the usual square shoulder and obviates crush washers to secure muzzle accessories.

SIG Sauer has just declared the M400 TREAD COIL, a different and Increased version of their preferred ready-out-of-the-box TREAD number of rifles. SIG Sauer describes The brand new rifle as “a new standard of performance and price while in the AR marketplace”.

Outfitted for overall performance out from the box, the TREAD COIL is completely configured with several of the major Tread components.

With the cheap Sig Sauer SIGM400, you could even more enhance it and include the subsequent accessories in your arsenal: 

Curiously, Sig Sauer SIGM400 sells the Tread-branded Romeo5 on its Web-site in a selling price significantly less than the unbranded but identical sight.

The barrel has a comparatively rapid 1:8-inch rate of twist, which happens to be extra well known lately to stabilize heavier and thus for a longer period bullets. My encounter shows that projectiles weighing about seventy seven grains appear to shoot a lot more accurately with a lot quicker twists. The probable downside, even so, is diminished accuracy working with significantly less pricey and more commonly accessible fifty five-grain bullets.

There was a evident gap in SIG’s product or service mix for your mid-degree AR-fifteen intended to contend in the primary line of that current market, Which gap turned much more apparent in The existing atmosphere, wherever excellent and perceived value—not dread of amplified regulation—are driving revenue.

The Tread is named once the yellow Gadsden Flag with its coiled “Don’t Tread on Me” rattlesnake and is also supported by marketing evocative of yank individualism.

Additional broadly Talking, the Tread’s brand name concept is really a mid-priced utility rifle promoted to a more moderen shooter alongside a deal of like-branded and 100-percent suitable extras. That past place—a hundred-% appropriate add-ons—appeals to both the shooter who values simplicity, and the subtle AR aficionado With all the experience to recognize that elements with the exact same company often healthy far better and possess a lot more intently matched finishes than elements from many sources.

SIG SAUER 1st released their M400 collection more than a decade in the past, Along with the initial Edition’s release in 2010. The M400 principle was intended to get SIG’s entry into the earth of budget-pleasant AR-15s.

These guns differ from SIG’s pricier rifles such as MCX Virtus Patrol, that is a piston-driven System, and slide additional intently in line with the immediate impingement operation that is now normally approved as “common” for ARs. Right until recently, the series’ present types protected the basics: an everyday sixteen″-barrelled rifle, an eleven.

In the case of SIG Sauer, these components possess the included benefit of acquiring been tested via the SIG Academy’s firearms trainers, who normally do the job with the design workforce.

But the top information would be that the TREAD COIL has factors galore integrated. Once you invest in the cheap SIG M400 TREAD COIL, you snap it up by having an integral red dot optic – the option Earlier readily available only being an accent. It tends to make the rifle willing to go when you finally unwrap the box. Other than, the M400 comes with:

The Tread’s competitive advantage stems from specific characteristics it shares with SIG’s better-priced M400 and M516 tactical rifles.

Sig Sauer SIGM400 TREAD COIL Starting with its proprietary, cast lower receiver, that is built extra substantial than most—it’s thicker at the bottom from the magazine well and also the integral QD sling swivel sockets at its rear supply a measure of added strength about a tension location in which the buttstock connects.

And when you don’t like the feel of greedy M-Lok slots, SIG sells grip plates for making the surface area smooth. SIG also provides numerous Magpul foregrip and handstop options with M-Lok attachments, and (certainly) rail sections might be mounted towards the M-Lok slots if desired.

Examine This Report On Sig Sauer SIGM400 TREAD COIL

These extras are sold in regular Tread-branded packaging that should appeal to sellers who will far more effortlessly educate their shoppers on the benefit of do-it-by yourself rifle accessorizing.

To further improve manipulation with the bolt capture, the bottom portion of the “ping-pong paddle” is extended forward.

That’s not an inconsequential feature as anybody who has become stranded afield by using a useless optic and no spare battery can attest to.

SIG Sauer has just declared the M400 TREAD COIL, a different and Increased version of their preferred Completely ready-out-of-the-box TREAD number of rifles. SIG Sauer describes The brand new rifle as “a new conventional of performance and value inside the AR industry”.

The induce also manufactured firing offhand underneath time constraints into four-inch circles and headboxes more difficult and underscored the requirement of lighter fat if you intend to contend with the Tread. However the manufacturing unit trigger is usually lightened rather by modifying to lighter hammer and cause springs, you must validate trustworthiness by checking for adequate primer strikes and trigger return.

The Tread’s visually putting, total-size fifteen-inch handguard might not be aesthetically satisfying to all, however it is mainly an improvement about the chunky and out-of-date quad-rail handguards that incorporate fat and they are awkward to grasp. The Tread handguard mounts to a proprietary barrel nut with two Allen-head screws and rigidity is augmented by a slot atop the handguard that matches the guard tightly to the higher receiver.

About the author: Max Slowik is actually a writer with over a dozen decades of practical experience and is a lifelong shooter. He has unwavering help for the 2nd Amendment as well as human suitable to self-protection.

The barrel has a comparatively rapid 1:8-inch rate of twist, which happens to be additional common in recent times to stabilize heavier and thus more time bullets. My expertise exhibits that projectiles weighing about seventy seven grains seem to shoot more properly with quicker twists. The potential draw back, even so, is diminished accuracy applying a lot less expensive and even more widely out there fifty five-grain bullets.

Firearms refused because of the FFL Seller or which can not be transferred resulting from a unsuccessful qualifications Examine will likely be topic to a 10% restocking charge.

SIG also chosen a stainless-steel, micro gas block that mounts shut more than enough on the barrel to allow for slender-diameter handguards which have been much easier to grasp and lighter weight than most models utilised previously.

The controls utilised also improve upon the marketplace norm. Sturdier safety levers are ambidextrous, with the appropriate-side lever properly shortened to ensure that it doesn’t abrade the trigger finger and an ambidextrous mag release Along with the left-aspect launch protected from inadvertent activation by a fence integral towards the receiver.

SIG Sauer says the new m400 tread coil and extras at the moment are transport and readily available in retail outlets and at It is possible to have a look at tfbtv’s look at the TREAD system in this article as well as their consider the tread pistol right here.

Matt is actually a British historian specialising in compact arms advancement and military services historical past. He has penned many guides and for many different publications in both of those the US and United kingdom.

The Tread’s competitive edge stems from sure features it shares with SIG’s higher-priced M400 and M516 tactical rifles. Beginning with its proprietary, solid decrease receiver, that’s designed additional sizeable than most—it’s thicker website at The underside of your journal perfectly and the integral QD sling swivel sockets at its rear provide a measure of added strength around a stress region exactly where the buttstock connects.

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