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SIG SAUER® M400 Tread 5.56 NATO/.223 Rem. Semi-automatic AR-15 Rifle
Introducing the first M4 to earn the SIG® name. With the M400, SIG SAUER didn't just set out to make a bog-standard AR. Instead, they utilized the innovation, performance and attention to detail that defines other SIG rifles to evolve the platform. The result is the SIGM400, a superior system offering advanced features available right out of the box that were once only found on the after-market.
It starts with the premium 16" stainless steel barrel that delivers greater accuracy than standard 4140 steel. It comes capped with an effective 3-prong flash hider. The factory-upgraded flat-blade, single-stage trigger comes polished for extra smoothness, giving you a higher degree of control. The free-floating M-Lok handguard features lightening cuts, and won't affect accuracy.
And the best part? Despite the vast array of upgrades, it's still a great value. Buying a bare-bones AR and customizing it would cost you quite a bit more…and you STILL might not be getting this level of performance out of the box.