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SIG SAUER M400 TREAD with Red/Green Reflex Sight 5.56X45MM NATO
Guns International #: 103394821 Seller's Inventory #: 601412
Category: Sig Sauer Rifles - M400 - AR15 Rifles
Seller's Information
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Seller: Guns Dot Com
Member Since: 9/8/21
State: Minnesota
Zip: 55337
Country: United States
Phone: (866) 582-4867
Platinum Seller
Number of Active Listings: 41025
Total Number of Listings: 405347
Seller: FFL Dealer
Return Policy: 3 day inspection and return policy on used guns.
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Description:
Guns Listing ID: 601412
SIG Sauer SIGM400 TREAD 5.56mm AR-15 Rifle – 16-Inch Stainless Barrel, Ambidextrous Controls, Threaded 1/2-28
The SIGM400 TREAD combines proven AR-15 function with SIG Sauer’s factory upgrades. A mid-length gas system softens recoil, the 16-inch stainless barrel is already threaded 1/2-28 for muzzle devices, and ambidextrous controls come standard. Built on 7075-T6 forged receivers and supported by the TREAD accessory line, this rifle arrives ready for range duty or tailored customization.
Condition
Overall Condition: Excellent – Superficial signs of prior handling or use.
Bore Condition: Excellent – Clean finish
Bore Rifling: Excellent – Sharp lands and grooves.
Comes with one (1) 30-round magazine and a Ozark Armament Rhino Red/Green Dot Reflex Sight with five different brightness with green and red settings allowing you to shoot from dusk, day time, dawn, or night time. Firearm does not come with a rifle case.
The mid-length gas system reduces recoil impulse and parts wear compared with standard carbine-length setups, helping shooters stay on target during rapid strings.
A free-float aluminum M-LOK handguard keeps accessories solid while eliminating barrel contact for repeatable accuracy. Its two-screw design lets owners swap handguards without a vise.
The 16-inch stainless steel barrel features a 1:8 RH twist that stabilizes the full range of 5.56 projectiles. Factory 1/2-28 threads accept common flash hiders, compensators, or suppressor mounts.
Ambidextrous safety selector and magazine release make the rifle equally accessible to left- or right-handed users. A single-stage trigger offers a familiar, consistent pull.
Forged 7075-T6 receivers, a six-position telescoping stock, and textured polymer pistol grip round out a durable, user-focused package.
Serial prefix “20L" places production in 2020–2021.
Specifications
Manufacturer: SIG Sauer
Model: SIGM400 TREAD
Platform: AR-15
Caliber: 5.56mm NATO
Action: Semi-automatic, direct impingement
Barrel Length: 16 in.
Barrel Material: Stainless steel, threaded 1/2-28
Twist Rate: 1:8 RH
Gas System: Mid-length
Receiver Material: 7075-T6 aluminum
Finish: Matte black
Handguard: Free-float aluminum M-LOK with top Picatinny rail
Stock: 6-position telescoping polymer, black
Grip: Textured polymer pistol grip
Controls: Ambidextrous safety selector and magazine release
Trigger: Single-stage
Country of Origin: USA
Serial Prefix: 20L (2020–2021 production)
SOLD
Manufacturer: SIG SAUER
Model: M400 TREAD with Red/Green Reflex Sight
Caliber Info: 5.56X45MM NATO
Condition: Used - Non-Certified
Barrels: 16" BARREL
Action: SEMI AUTOMATIC
Finish: black