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Key Features
- 5.56 NATO/.223 Remington
- 30+1 rounds
- 16" stainless steel barrel
- Magpul® SL-K 6-position stock
- M-LOK handguard with lightening cuts to reduce weight
- Polished single-stage trigger
- 3-prong flash hider
- Includes (1) 30-rd. magazine
Satisfaction Guarantee
Order with complete confidence! Your satisfaction is guaranteed, period! We stand behind every item we sell. If you're not happy within 90 days of shipment, just return the item with your invoice and we'll promptly refund your merchandise total. See More Details
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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.
- 16" stainless steel barrel delivers enhanced accuracy
- Magpul® SL-K 6-position stock
- M-LOK handguard with lightening cuts to reduce weight
- Handguard is free-floated for greater accuracy
- Polished single-stage trigger delivers a smoother, lighter pull than 2-stage mil-spec triggers
- 3-prong flash hider
- Aircraft aluminum charging handle
- Includes (1) 30-rd. magazine
Order today!
Key Specifications
- Item Number: 710548
- Caliber: 5.56 NATO/.223 Remington
- Action: Direct impingement
- Capacity: 30+1
- Barrel Length: 16"
- Barrel Material: Stainless steel
- Barrel Twist: 1:8"
- Stock: Magpul SL-K 6-position
- Sights (front/rear): Optics-ready
- Fire Control: Polished single-stage flat-blade
- Handguard: M-Lok free-float
- Flash hider: 3-prong
- Overall Length: 30.8"
- Overall Weight: 7 lbs.
- Mfg. Number: RM400-16B-TRD
- UPC: 798681597765
SIG SAUER M400 Tread AR-15, Semi-automatic, 5.56 NATO/.223 Rem., 16" Barrel, 30+1 Rounds
$849.99 / $849.99 Member