SIG Sauer M400 Tread 5.56 NATO 16" - AR-15 Rifle
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Sig Sauer
Overview
The SIG Sauer M400 Tread 5.56 NATO 16" - AR-15 Rifle is a complete rifle. Compare prices from multiple merchants and find the best deal.
Specifications
Build history on GunPartPicker
Builders have been adding the SIG Sauer M400 Tread 5.56 NATO 16" - AR-15 Rifle to their builds on GunPartPicker since April 2026. All time, it ranks #120 of the 479 complete rifles builders have added.
Availability is good: it was in stock at one retailer or another nearly every day in September 2026, and today 2 of the 3 retailers we track have it in stock. It dipped to $925.18 at KY Gun Company for a stretch in September 2026, under its usual $984.23, so sales do come around. Buying today, the lowest price is $919.34 at BattleHawk Armory, which matches the best price we saw in September.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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