SIG Sauer SIG516

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SIG Sauer SIG516
SIG SG 516 14.5″.jpg
The SIG516 Tactical Patrol 14.5″
Type Assault rifle
Semi-automatic rifle
Place of origin United States
Service history
In service 2010–Present
Production history
Designer Robert Hirt
Christopher Sirois
Designed 2000s
Manufacturer Swiss Arms AG
Produced 2010–Present
Weight 516 PDW: 6.5 lb (2.95 kg)
516 CQB: 6.9 lb (3.13 kg)
516 Tactical Patrol: 7.09 lb (3.22 kg)
516 Patrol: 7.6 lb (3.45 kg)
516 Precision: 7.7 lb (3.5 kg)
516 Russian: 7.6 lb (3.4 kg)
516 Patrol FDE: 7.6 lb (3.4 kg)
516 OD Green: 7.6 lb (3.4 kg)
Length 516 Patrol (stock extended): 36.7 in (932.2 mm)
516 Patrol (stock collapsed): 33.0 in (838.2 mm)
516 Precision: 39.5 in (1,003.3 mm)
516 Patrol FDE (stock extended): 36.7 in (932.2 mm)
516 Patrol FDE (stock collapsed): 33.0 in (838.2 mm)
516 OD Green (stock extended): 36.7 in (932.2 mm)
516 OD Green (stock collapsed): 33.0 in (838.2 mm)
Barrel length 516 PDW: 7.5 in (190.5 mm)
516 CQB: 10 in (254.0 mm)
516 Tactical Patrol: 14.5 in (368.3 mm)
516 Patrol: 16 in (406.4 mm)
516 Precision: 18 in (457.2 mm)
516 Patrol FDE: 16 in (406.4 mm)
516 OD Green: 16 in (406.4 mm)
516 Russian: 16 in (406.4 mm)[2]

Cartridge 5.56×45mm NATO
Action Short-stroke Pushrod Gas System, rotating bolt
Feed system 10, 20, 30-round detachable magazine
Sights Iron sights

The SIG Sauer SIG516 is a firearm manufactured by SIG Sauer. The rifle is based on the earlier 5.56×45mm NATO AR-15 and the M16.[3]

Design details[edit]

Operating mechanism[edit]

The SIG516 is a semi-automatic multi-caliber rifle, intended for civilian and law enforcement markets. The same family also includes selective-fired assault rifles, strictly intended for law enforcement and military use.[4] It fires from a closed bolt, and has a short-stroke push rod piston system. The gas piston pushes the bolt carrier rearward, where it is returned to the forward and locked position by a spring. This process loads the next cartridge. The 516 has a four position gas regulator, allowing the user to choose the amount of gas directed to the piston.


The SIG516 has a safety lever on the left side, to be used by the thumb of the shooting hand. The gas block integrates an adjustable gas regulator. The front gas block is railed to accept the front sight with a flip-up sight post. SIG516 models are equipped with an M16A2 style bird-cage flash hider.

All SIG516 models except the Marksman are equipped with 16 inch barrels shrouded by a free-floating M1913 Picatinny rail, as well as flip-up iron sights (BUIS) made by SIG Sauer.

The 5.56×45mm NATO SIG516 models accept AR-15 style box magazines. These magazines are constructed in 5-, 10-, 20-, and 30-round variants. SIG516 Russian rifles must use a different magazine, as they are chambered in 7.62×39mm. The SIG516 Russian uses magazines designed for 7.62×39mm AR-15 rifles. The rifle is hammer-fired and has a two-stage trigger mechanism in the SIG516 Marksman, while all others have a military specification single-stage trigger.

A bolt hold-open device locks the bolt carrier assembly open after expending the last cartridge from the magazine and is released by pushing the bolt catch lever located on the left side of the receiver. Alternatively, a left-handed shooter may release the bolt by pulling the charging handle a short distance to the rear.


See also[edit]


  1. ^ "SIG Rifles". Retrieved 8 April 2014. 
  2. ^ "SIG Rifles". Retrieved 9 February 2012. 
  3. ^ "SIG Sauer's SIG516: Expect the unexpected". Retrieved 9 February 2012. 
  4. ^ "SIG516 tactical rifle". Retrieved 16 January 2013. 
  5. ^ "". Retrieved 2017-06-25. 
  6. ^ [1][dead link]
  7. ^ "Mit dieser Waffe reagiert die Aargauer Polizei auf die Pariser Anschläge". 11 January 2016. Retrieved 2017-06-25. 
  8. ^ "Özel harekâta özel silah | Şanliurfa Haberleri". Retrieved 2017-06-25. 
  9. ^ Dodd, Vikram (29 June 2015). "Scotland Yard creates SAS-style unit to counter threat of terrorist gun attack". The Guardian. 
  10. ^ "Birmingham accidental firearms discharge investigation complete - Independent Police Complaints Commission". 
  11. ^ "Cincinnati SWAT selects SIG516 CQB; Delaware State Police pick SIG516". 2015-04-11. Retrieved 2017-06-25. 
  12. ^  Missing or empty |title= (help)

External links[edit]