SIG Sauer M400 TREAD 5.56mm


SIG Sauer M400 TREAD 5.56mm with one 30 round magazine

  • MFR#: RM400-16B-TRD
  • UPC: 798681597765
  • CALIBER: 5.56mm, .223
  • MAGAZINE CAPACITY: 30 rounds
  • # OF MAGS: One
  • TYPE: Semi Auto Rifle
  • SIGHTS: Optics ready
  • FRAME MATERIAL: Aluminum
  • CASE: Cardboard


SIG Sauer M400 TREAD 5.56mm with one 30 round magazine

The SIG Sauer M400 TREAD has all the features you would in a quality AR-15. The TREAD is engineer to deliver exceptional quality, performance and comes standard with the most sought-after features for today’s AR platform rifles. Unlike most rifles in its class, the TREAD is easily customizable with a full line of purpose-built accessories, designed and built in the USA.


  • 16″ Stainless Steel Barrel with micro gas block.
  • Mid-length gas system.
  • Three prong flash hider, for increased flash suppression.
  • Free floating M-LOK aluminum handguard, for easy mounting of accessories.
  • Polished hard-coated single stage trigger.
  • Ambidextrous controls to accommodate both left and right handed shooters.
  • Magpul SL-K six position stock.
  • One 30rd mag.

SIG Sauer 5.56mm with one 30 round magazine

SIG SAUER has create a premium rifle, at a moderate price point, that is pack with innovation and flexibility, and does not sacrifice the quality that our consumers demand from SIG,” began Tom Taylor, Chief Marketing Officer and Executive Vice President SIG SAUER, Inc. “The base model of the TREAD is load with features that would be consider costly upgrades from our competitors base model. At this price point, most rifles are equip with a barrel mount sight post that blocks your field of view when using optics. Right out of the box, the TREAD features a factory-install, aluminum, free floating M-LOK handguard for improve accuracy, and can be easily remove with two hex screws to change out to the TREAD accessory option

MFR#: RM400-16B-TRD

UPC: 798681597765


This is a serialized firearm, and must be shipped to an FFL dealer. Please have your FFL dealer either fax or email a copy of their FFL license to us. Email:
If you choose the In Store Pickup option, a VSP SP-65 & ATF Form 4473 must be filled out at the time of pickup.

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