SIG Sauer 556xi

by
posted on January 15, 2014
sig_556-xi.jpg

 

SIG Sauer had no shortage of new releases to roll out at its private media event at SHOT Show 2014, but few created as much buzz as the 556xi.

A continuation of the SIG 556 line-which itself was based on the legendary SG 550-the 556xi line is designed to change the way military, lawn 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.

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, 5.56x45 mm NATO, 300 Blackout, and 7.62x39 mm. 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.

 

See the SIG 556xi in action by clicking on the video embedded below.

For more information, go to SigSauer.com.

Latest

Iver Johnson MF20
Iver Johnson MF20

Review: Iver Johnson MF20

It’s no surprise that innovative designs like the Iver Johnson MF20 have emerged; by merging the best features of both shotguns and ARs, this firearm offers impressive—but controllable—firepower while mitigating the scattergun’s usual shortcomings.

6 New Handguns For 2025

Several of the nation's biggest names in firearm manufacturing have released new models ahead of SHOT Show 2025. Here's a rundown of the features that each of them offer.

Boys To Riflemen: Aiken’s Volunteers During The British Attack on Plattsburgh

In September 1814, Americans once again stood against the might of the British military, as their forefathers had done during the Revolution. A small group of teen boys proved their valor in the face of a British attack and earned a special presentation rifle for their efforts.

The Armed Citizen® Jan. 20, 2025

Read today's "The Armed Citizen" entry for real stories of law-abiding citizens, past and present, who used their firearms to save lives.

A Gas-Operated M1903 Conversion That Never Was

The U.S. government's never-ending quest for a more effective shoulder-fired arm to equip its military has, naturally, resulted in more prototypes than production models. This semi-automatic Model 1903 Springfield conversion was one such dead-end.

Preview: Burris BTS35 v3

The author joined industry professionals for a coyote hunt that went well into the evening hours using thermal imaging from Burris. Read field notes from that hunt using the BTS35 v3.

Interests



Get the best of American Rifleman delivered to your inbox.