EXETER, NH –-(Ammoland.com)- SIG SAUERintroduces the SIG556xi, rewriting the standard for modularity, reliability, and performance for the modern rifle platform.
Based on the legendary SG 550, the SIG556xi will change the way military, law enforcement, and responsible citizens look at adaptable rifles. Utilizing the time-tested rotating bolt and adjustable gas piston operating system, the SIG556xi allows operators a choice of caliber, barrel length, handguard/stock configurations and lower receivers.
“The SIG556xi has been designed to be the most modular and easily adaptable, hard-use rifle available,” said Jeff Creamer, SIG SAUER Director of Product Management. “From the furniture to caliber to barrel length to magazine preference, the SIG556xi can be completely changed over in minutes to suit the user’s needs.”
A removable barrel allows the operator to select the necessary length for a given mission. Adding the appropriate bolt, the SIG556xi can be changed to any of three calibers, 5.56x45mm NATO, 300 Blackout, and 7.62x39mm NATO. Users can also quickly change out the non-serialized lower receiver, allowing the use of either AR-style STANAG magazines or rock-and-lock AK-style magazines. The SIG556xi upper receiver is the serialized part, making the lower an easy to purchase part.
Polymer handguards accept all Magpul light and rail kits, while the aluminum and carbon fiber handguards accept 2”, 4”, and 6” M1913 rails. Barrels are available in 10”, 14.5”, and 16”. Truly ambidextrous, the SIG556xi features an ambi safety selector, magazine release and user swappable charging handle (right- or left-handed). Optional receiver end plates allow for the use of either AR receiver extension tubes and buttstocks or M1913 compatible stocks
Thanks to a redesigned trigger package, the military and law enforcement versions of the SIG556xi are capable of full-auto fire in every caliber, including 7.62x39mm. The Russian lower has been thoroughly function tested with many available AK magazines, including US P.A.L.M.
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About SIG SAUER, Inc.
SIG SAUER, Inc. is the largest member of a worldwide business group of firearms manufacturers that includes SIG SAUER GmbH & Co. KG in Germany and Swiss Arms AG in Switzerland. This global network of companies gives SIG SAUER a world-class firearms knowledge base, unparalleled design expertise, and extensive manufacturing capacity, enabling the company to respond quickly and effectively to changing market conditions and the needs of its military, law enforcement, and commercial markets worldwide. SIG SAUER is an ISO 9001: 2008 certified company with more than 900 employees. For more information on SIG SAUER, any of its products, or the SIG SAUER Academy, log on to www.sigsauer.com.
SIG556xi® | |
Caliber | 5.56mm NATO |
Action Type | Semi-auto |
Operating System | Adjustable 3-Position Gas Piston System |
Trigger Pull | 7 lbs |
Trigger Type | MIL-SPEC 2-Stage |
Overall Length (Extended) | 35.1” |
Overall Length (Folded) | 26.0” |
Barrel Length | 16.0” |
Rifling | 1:7 |
Number of grooves | 4 |
Weight w/out Mag | 7.5 lbs |
Mag Capacity | 30 Rounds |
Mag Type | Aluminum GI |
Accessory Rail | Optional – 2”, 4”, 6” M1913 Rail Sections |
Features | Adjustable 3-Position Gas Piston System, Flip-up Adjustable Iron Sights, Swiss Side-folding Stock with Removable Cheek Riser. |
MSRP | $1,599 |
SIG556xi® Russian | |
Caliber | 7.62x39mm NATO |
Action Type | Semi-auto |
Operating System | Adjustable 3-Position Gas Piston System |
Trigger Pull | 7 lbs |
Trigger Type | MIL-SPEC 2-Stage |
Overall Length (Extended) | 35.1” |
Overall Length (Folded) | 26.0” |
Barrel Length | 16.0” |
Rifling | 1:9.5 |
Number of grooves | 4 |
Weight w/out Mag | 7.5 lbs |
Mag Capacity | 30 Rounds |
Mag Type | AK-47 type |
Accessory Rail | Optional – 2”, 4”, 6” M1913 Rail Sections |
Features | Adjustable 3-Position Gas Piston System, Flip-up Adjustable Iron Sights, Swiss Side-folding Stock with Removable Cheek Riser. Accepts U.S. P.A.L.M. Magazines |
SIG556xi® | |
Caliber | 300 Blackout |
Action Type | Semi-Auto |
Operating System | Adjustable 3-position gas piston system |
Trigger Pull | 7 lbs |
Trigger Type | MIL-SPEC |
Overall Length (Extended) | 35.1” |
Overall Length (Folded) | 26.0” |
Barrel Length | 16.0” |
Rifling | 1:7 |
Number of grooves | 4 |
Weight w/out Mag | 7.5 lbs |
Mag Capacity | 30 Rounds |
Mag Type | Aluminum GI |
Accessory Rail | Optional – 2”, 4”, 6” 1913 rail sections |
Features | Adjustable 3-position gas piston system,, flip-up adjustable iron sights, Swiss side folding stock with removable cheek riser. |
https://www.sigarms556.com/threads/sig556xi-300-aac-blackout-barrel-kit-keep-twiddling-my-thumbs.15361/ <——- the lego gun with no lego no parts or conversion kits available and no official realease statement about when or ever