TACTICAL PRECISION, For 2011, SIG SAUER® is offering several variants to its tactical platforms. NEW to this lineup is our new SIG551-A1, chambered for the widely used 5.56 x 45mm NATO caliber using Swiss Polymer magazines. The SIG551-A1 features a distinctive swiss folding stock, and an M1913 rail for accessory attachment. The 16” barrel features four-groove rifling and a twist rate of 1:7”. The SIG551-A1 measures 36.1” but can fold to 26”, making it ideal for situations where maximum maneuverability is required. For Special Forces requiring an accurate, more potent rifle, chambered in 5.56 x 45mm NATO, the SIG551-A1 sets a new standard for dependable operation and function.

Item Number 	R551A1-F16B-C
  Caliber 	5.56X45mm NATO
  Overall Length 	36.1”
  length w/Stock Collapsed 	34.6”
  length w/Stock Folded 	26.0”
  Barrel Length 	16”
  Rifling 	1 in 7 in
  Sight Radius 	18.0”
  Forearm 	Polymer
  Stock Type 	Swiss Type
  Weight w/out Mag 	7.0 lbs
  Operating System 	Gas piston, rotating bolt
  Mag Capacity 	20/30 rounds
  Features 	Swiss type folding stock, rotary diopter sighting system
  MSRP 	$1,599.00
  CA Compliant 	No
  MA Compliant 	No
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551-A1-Sell2.pdf

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