Sig Sauer M400 SDI XSeries 5.56 16" - AR-15 Rifle

Rifle Sig Sauer

Sig Sauer M400 SDI XSeries 5.56 16" - AR-15 Rifle
$1,499.99 Out of stock

Up 9.3% since Jul 24

at Primary Arms ·

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Price history

Lowest seen
$1,372.35
Typical price
$1,436.17
Tracked since
Apr 10, 2026

This price is $127.64 above the 217-day low and 4% above typical.

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