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SIG SAUER M400 Tread SDI Xseries

ar15 rifle 5.56x45mm sigsauer
CollectorsFirearms.com has the best offer of $1499.95, with no recent change in price, across a total of 7 listings.
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Current Listings
(SN: 20L220414) Sig Sauer M400 SDI X-Series Rifle 5.56 Nato (25-00585) NEW CollectorsFirearms.com $1499.95 2025/9/5
Sig Sauer M400 X-Series SDI, 5.56mm NATO, 16" BBL, 30rd OsageCountyGuns.com $1499.99 2025/9/5
Sig Sauer M400 SDI X-Series 5.56mm Semi-Automatic Rifle with M-LOK Handguard SportsmansOutdoorSuperstore.com $1499.99 2025/9/5
SIG SAUER, INC. - M400 SDI XSERIES 5.56X45 NATO SEMI-AUTO RIFLE Brownells.com $1499.99 2025/9/5
Sig M400 XSERIES SDI 5.56/.223, 16" Barrel, Black, 30rd ImpactGuns.com $1499.99 2025/9/3

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