SIG ARMS AG SIG 556 5.56X45MM NATO
Guns International #: 103130818 Seller's Inventory #: 525999
Category: Sig Arms Rifles - Tactical Rifles

Seller's Information
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Verified Seller
Seller: Guns Dot Com
Member Since: 9/8/21
State: Minnesota
Zip: 55337
Country: United States
Phone: (866) 582-4867
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Number of Active Listings: 41025
Total Number of Listings: 405347
Seller: FFL Dealer
Return Policy: 3 day inspection and return policy on used guns.
CERTIFIED USED GUNS Guns Certified Used Guns may be returned within 3 days after the transfer is complete for any reason for a full refund, minus any fees, shipping costs and a 15% restocking fee. A Guns Certified Used Gun may also be returned within 7 days if it is malfunctioning with proper use. NON-CERTIFIED USED GUNS Non-certified used guns can be returned if there is a mechanical defect that occurs within 3 calendar days of the physical transfer of the firearm to your possession. All other reasons for returns on non-certified used guns are ineligible.
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Description:
Guns Listing ID: 525999



The SIG Sauer 556 is a semi-automatic rifle introduced in 2007, designed to blend the reliability of the Swiss SIG 550 with features tailored for the U.S. civilian market. It utilizes a long-stroke gas piston system, renowned for its durability and ease of maintenance, especially in adverse conditions.
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Key Specifications
Caliber: 5.56×45mm NATO / .223 Remington

Operating System: Long-stroke gas piston with a rotating bolt

Barrel: Typically 16 inches, cold hammer-forged, with a 1:7 twist rate

Magazine Compatibility: Accepts standard AR-15/M16 STANAG magazines

Stock Options: Side-folding, fixed, or collapsible, depending on the model

Gas System: Two-position adjustable for reliability across various ammunition types and conditions

Charging Handle: Side-mounted, similar to the AK platform

Modularity: Equipped with Picatinny rails for mounting optics and accessorie

SOLD

Manufacturer: SIG ARMS AG
Model: SIG 556
Caliber Info: 5.56X45MM NATO
Condition: Used - Non-Certified
Barrels: 16
Action: SEMI AUTOMATIC
Finish: blued