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SIG SAUER SIG556XI RIFLES

Based on the legendary SG 550, the SIG556xi changes the way that military, law enforcement, and responsible citizens look at adaptable rifles. With a time-tested rotating bolt and adjustable gas piston operation the SIG556xi allows the operator a choice of barrel length, caliber, handguard, stock configurations and lower receivers.

The removeable barrel allows the operator to select the barrel length for a given mission, with the appropriate bolt the SIG556xi can be quickly changed to any of three calibers: 5.56x45mm NATO, .300 Blackout and 7.62x39mm. The takedown-pin design allows the user to quickly change out the non-serialized lower receiver, allowing for the use of either AR-style STANAG magazines or rock-and-lock AK-style magazines. The SIG556xi's upper receiver is the serialized part, making the purchase of the lower receiver quick and easy

The Polymer handguards accept all MAGPUL light and rail kits, while the aluminum and carbon fiber handguards accept 2", 4" and 6" M1913 style rails. With barrels available in 10", 14.5" and 16" and a truly ambidextrous set up, featuring an ambi safety selector, magazine release and user swappable charging handle (Right- or left-handed) the SIG556xi is a truly modular rifle for everyone. With optional receiver end plates you gain the use of either AR receiver extension tubes and and buttstocks or any M1913 compatible stocks.

The SIG556xi has a redeigned trigger package, allowing the military and law enforcement versions to be capable of full-auto fire in every caliber - including 7.62x39mm.
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