SIG SAUER has previously offered complete short-barreled upper receivers for their SIG516Â® rifles, but this is the first time complete rifles are to be offered in SBR configurations.
Preferred by entry teams and CQB specialists for greater maneuverability in tight places, SBRs deliver significant ballistic performance over pistol-caliber weapons. With the growth of the suppressor market, SBRs have also seen increased interest from those who want a suppressed rifle without introducing additional length.
The Factory SBR Program will offer shortened variants of all SIG SAUER semi-automatic rifles, from the .22LR SIG522â¢ to the 7.62 NATO SIG716Â®. Each platform will have a SBR-tuned gas system to ensure maximum performance and reliability.
SBRs are available in Classic, Patrol and SWAT configurations, giving the user a wide variety of options.
TACTICAL PRECISION, For 2011, SIG SAUERÂ® 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 SBR 10â barrel features six-groove rifling and a twist rate of 1:7â.
The SIG551-A1 10" SBR measures 29.8â but can fold to 19.7â, 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.
Operating System: Gas Piston, Rotating Bolt
Caliber: 5.56mm NATO
Overall Length: 29.8 in
Trigger Type: 2-stage
Trigger Weight: 7.6 lbs
Barrel Length: 10.0 in
Rifling: 1 in 7in
Number of Grooves: 6
Weight w/out Mag: 7.3 lbs
Mag Capacity: 30 Rounds
Mag Type: Swiss type translucent polymer
Accessory Rail: Yes
Features: Swiss type folding stock, rotary diopter sighting system