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10.0 Technical Specifications
Specification SIG551-A1
Classic
SIG551-A1 SF SIG551-A1
SHORT SF
SIG551-A1
SHORT SF SWAT
Caliber
5.56mm NATO
(.223 Remington)
5.56 x 45mm NATO
Action Type
Select Fire (Single, 3rd Burst, Auto)
Rate of Fire
625-775 RMP 650-800 RPM
Overall Length
37.0” 37.2” 30.5” 31.4”
Length with Stock Folded
27.2” 20.1” 21.6”
Barrel Length
16” 16.3” 10” 10”
Rifling
1 in 7”
Weight w/o Mag
7.8 lbs 8.5 lbs 6.9 lbs 7.4 lbs
Operating System
Full Length Gas Piston, Rotating Bolt
Mag Type & Capacity
Uses Original Swiss 550 Series transparent magazines
All specifications are approximate and will vary with configuration. Specifications subject to change without notice.
12SIG541_SIG551_A1MiniManual_Rev1.indd 91 2/17/12 2:48 PM