Product Description
Pre-Owned SIG Sauer M400 TREAD Package – 5.56 NATO with .458 SOCOM Upper
The SIG Sauer M400 TREAD is built for shooters who demand performance without compromise. Outfitted with a Magpul MOE forend grip and MOE stock, this rifle offers a rock-solid, ergonomic setup designed for control, comfort, and customization.
Its lower receiver includes an ambidextrous safety for right- or left-handed operation, along with an integrated QD sling mount for fast and secure attachment. At its core is a 16” stainless steel barrel, chambered in 5.56 NATO, offering excellent durability, corrosion resistance, and accuracy. The barrel is paired with a 3-prong flash hider and a versatile 1:8 twist rate, while the mid-length gas system delivers smoother cycling and reduced recoil.
The M400 TREAD also comes equipped with a SIG Matchlite 2-stage trigger for crisp, predictable pulls, giving you enhanced control and accuracy.
This package includes:
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Factory SIG Sauer M400 TREAD (5.56 NATO)
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Complete .458 SOCOM upper for added versatility
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Pelican hard case for secure storage and transport
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5 magazines included
Key Features:
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Caliber: 5.56 NATO (primary) / .458 SOCOM (additional upper)
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Barrel Length: 16” stainless steel (5.56 upper)
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Gas System: Mid-length
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Trigger: SIG Matchlite 2-stage
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Furniture: Magpul MOE forend grip & MOE stock
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Extras: Pelican case + 5 mags
This M400 TREAD package combines SIG Sauer’s proven performance with Magpul’s trusted ergonomics, plus the versatility of an additional .458 SOCOM upper. With the included case and magazines, it’s a complete setup ready for the range or defense.
