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SIG Sauer SIG556xi SWAT Centerfire Rifle

Item # 694158
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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.


  • Interchangeable Components

  • Fully Ambidextrous Controls

  • Swiss-Style Folding Stock

  • Polymer/Alloy Quad Rail & Picatinny Top Rail

  • Flip-Up Front & Rear Sights

Product Summary

Combining the best of the AR and AK with the legendary reliability of the Swiss 550 Series, the SIG556xi is the most adaptive tactical carbine ever. The SIG556xi accepts multiple calibers and magazine types, while offering ambidextrous controls and the next-generation, three-position adjustable gas piston operating system. A unique serialized upper allows you to swap lower receivers for maximum component flexibility. The 556xi accepts AR-pattern 7.62x39mm, AR-15/M16 STANAG, or AK magazines (with an AK-style lower installed). Easily adapt to your environment with 10", 14.5" or 16" barrel lengths available. A reversable single point sling swivel keeps the SIG556xi always in reach.

The SWAT model features: an AR lower receiver, a Swiss-style folding stock, a polymer/alloy handguard with a quad rail, a full-length picatinny top rail, removable back-up sights, a removable cheek riser, and the ergonomic xi grip with a storage compartment.

Model SIG556xi SWAT
Type Centerfire Rifle
Action Semi-Auto
Caliber .223 Rem./5.56 NATO
Barrel Length 16"
Weight 7.1 Lbs.
Sights Back-Up
Finish: Stock Matte Black Synthetic
Finish : Barrel & Receiver Matte Black
Trigger 2-Stage
Safety Ambidextrous Thumb
Capacity 30 + 1