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SIG Sauer M400 Enhanced Centerfire Rifle

Item # GM447601
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Additional Information:

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  • Firearms shipping charge of $25.00 per item.
  • You must be at least 18 years old to purchase this item. State and local laws may vary.


  • 16" Chrome-Lined Barrel

  • Hard-Coat Anodized Receiver

  • Direct-Impingement Gas System

  • Magpul Furniture w/ Telescoping Buttstock

  • A2 Post/Flip-Adjustable Sights

Product Summary

The SIG M400 is a true AR-platform tactical rifle, designed for use in law-enforcement, military operations, or the sporting field, as well as in competitive shooting. A 16" chrome-lined and phosphate coated barrel provides superior corrosion resistance, and a 7075-T6 aircraft grade aluminum forged lower receiver adds to the durability and reliability that users come to expect from SIG Sauer. The M400's dependable direct-impingement gas operating system uses a rotating locking bolt. The Enhanced version of the M400 is designed for use in law-enforcement, military operations, and the sporting field, as well as competitive shooting. Features include a hard-coat anodized upper and lower, Magpul furniture, A2 front and flip-up rear sights, ambidextrous quick detatch sling mounts, and a collapsible stock. Olive drab finish. 30-round magazine.

Model M400 Enhanced
Type Centerfire Rifle
Action Semi-Auto
Caliber .223 Rem./5.56 NATO
Barrel Length 16"
Weight 6.7 Lbs.
Sights A2 Front/Flip-Up Rear
Finish: Stock Olive Drab Synthetic
Finish : Barrel & Receiver Blued
Safety Standard
Capacity 1 x 30-Round Magazine