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SIG SAUER M400 Tread Forge

ar15 rifle 5.56x45mm sigsauer

GrabAGun.com has the best offer of $999.99, with no recent change in price, across a total of 6 listings.

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Sig Sauer M400 Forge 5.56 / .223 Rem 16" Barrel 10-Rounds w/ ROMEO-MSR CA Compliant	GrabAGun.com	$999.99	2026/6/1
Sig Sauer M400 Forge 5.56mm 16" Rifle, Black	RifleGear.com	$999.99	2026/6/2
Sig Sauer M400 Forge 5.56 / .223 Rem 16" Barrel 30-Rounds w/ ROMEO-MSR Gen II	GrabAGun.com	$999.99	2026/6/1
Sig Sauer M400 Forge 5.56 / .223 Rem 16" Barrel 10-Rounds w/ ROMEO-MSR Gen II	GrabAGun.com	$999.99	2026/6/1
SIG Sauer M400 Forge 5.56 NATO Rifle with ROMEO-MSR	g4gGuns.com	$999.99	2026/5/31
SIG M400 Forge 5.56 NATO AR Rifle with ROMEO MSR	g4gGuns.com	$999.99	2026/5/31