SIG Sauer SIG516 explained

SIG 516
Origin:United States
Type:Battle rifle (SIG716)
Is Ranged:Yes
Service:2010–present
Used By:See Users
Wars:Kurdish-Turkish conflict
2022 Russian Invasion of Ukraine
Manufacturer:SIG Sauer
Variants:SIG716
Weight:3.32NaN2 406 mm barrel
Length:920- 406 mm barrel
Part Length:406mm
Cartridge:5.56×45mm NATO (SIG516)
7.62×39mm (SIG516)
7.62×51mm NATO (SIG716)
6.5mm Creedmoor (SIG716)
Rate:750-950 rounds/minute
Velocity:8500NaN0 406 mm barrel
Range:500m (1,600feet)
Feed:10, 20, 30-round detachable magazine
Sights:Iron sights or picatinny rail for various optics

The SIG Sauer SIG516 is a rifle manufactured by SIG Sauer. It is an AR-15 style rifle chambered in 5.56×45mm NATO.[1] A variant chambered in 7.62x51mm NATO, the SIG716i, remains in production.[2]

History

The SIG Sauer SIG516 shares lineage to the Heckler & Koch HK416. The principal firearms engineers for the SIG516 were Robert Hirt and Chris Sirois. Engineer Hirt was instrumental in the development of the HK416. Following his time with Heckler & Koch, Hirt was recruited by SIG Sauer to work with then SIG engineer Chris Sirois on an improved version of the HK416. whilst omitted many proprietary HK416 components that were exchanged for standard (M4 carbine mil spec conform) components: the SIG516. Other HK416 issues like the (at the time) high cyclic rate, which causes lower life cycle. a gas vent, which showed up in low light conditions, and safety issues (i.e. the need for a firing pin safety) were also addressed. Hirt and Sirois later designed the SIG716 and SIG MCX/SIG MPX. They were later recruited by Caracal to develop a new rifle iteration that was superior to both the HK416 and SIG516 series. the CAR 816 series.[3] [4] [5] [6]

Design details

Operating mechanism

The SIG516 is a semi-automatic or select fire multi-caliber rifle. 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, to adjust the gas system to function reliably with various propellant, projectile, fouling, operating environment and configuration specific pressure behavior.[7]

Features

The SIG516 is based on the AR-15 platform ergonomic architecture, but uses a short-stroke gas piston operating system (unlike the AR-15's piston-operated gas impingement system). The 516 uses a proprietary belt carrier and government (law enforcement and military contract select-fire) rifles a special tungsten granules containing buffer to manage bolt carrier bounce and soften recoil. The barrel is chrome lined. The amount of movement between the upper and lower receiver is minimized by a rubber wedge.

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 16inches barrels shrouded by a free-floating M1913 Picatinny rail, as well as flip-up iron sights (BUIS) made by SIG Sauer.[8]

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 use a different magazine, as they are chambered in 7.62×39mm. The SIG516 Russian uses magazines designed for 7.62×39mm AR-15 style 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.

It is built to pass the NATO test protocol “Over the Beach”, meaning the SIG516 is designed to fire safely as quickly as possible after being submerged in water.

Variants

SIG516 Precision Marksman

The SIG516 Precision Marksman has a longer 457mm barrel and an adjustable 'sniper' stock. It weighs 3.52NaN2 and has a length of 914-. The barrel is chrome-lined. Ion and or optical sights are installed on an integral MIL-STD-1913 Picatinny rail on the top of the receiver and additional accessories can be mounted on the fore end quad rails.

SIG716

The SIG716 is a battle rifle variant,[9] which is based on the same design, but is chambered for the larger 7.62x51mm NATO round and uses SR-25 pattern magazines.[10]

SIG716 G2

The SIG716 G2 (Generation 2) variant features a short-stroke pushrod gas system. This operating system reduces carbon fouling, excessive heat and unburned powder in the action, ensuring further improved reliability and function.[11] The G2 Patrol model is chambered in 7.62×51mm NATO,[12] while the G2 DMR model is chambered in 6.5mm Creedmoor.[13]

SIG 716i

The 716i (impingement) variant features a gas-operated, rotating bolt (internal piston) system instead of short-stroke pushrod gas system. This Stoner bolt and carrier piston operating system has helped SIG Sauer to bring down the cost of manufacturing and pushing more sales of 716i, whilst also achieving a weight reduction.[14] The 716i is chambered in 7.62×51mm NATO.[15] Sig Sauer appears to have discontinued SIG716 and SIG716 G2 models, since the company stopped displaying these products in their website, while they continue to sell magazines and spare parts in their online store. The 716i has been recognized as the best AR-10 rifle for the year 2020, by readers' choice voting of Ballistic magazine.[16]

Users

Used by the Mobile Brigade of the Indonesian National Police.[26] SIG716 G2 used by Indonesian National Armed Forces special forces unit.[27]

See also

External links

Notes and References

  1. Web site: SIG Sauer's SIG516: Expect the unexpected. American Rifleman. 9 February 2012. https://web.archive.org/web/20111210110554/http://www.americanrifleman.org/articles/sig516-review. 10 December 2011. live.
  2. Web site: Full Rifle/Pistol Catalog . sigsauer.com . June 3, 2020.
  3. Web site: Caracal Wins India 5.56mm Rifle Contract.
  4. Web site: Global Arms: Car816 assault rifle – UAE's lethal desert killer. israelifirepower.com. 2020-09-19.
  5. Web site: The Sig MCX Multi Caliber Carbine: A Proper Way to Design an External Piston AR - Small Arms Review . September 2016 .
  6. Web site: Caracal Wins India 5.56mm Rifle Contract - Small Arms Solutions . October 2018 .
  7. Web site: Meet the Sig Sauer 516 Rifle: The Best AR-15 Around?. nationalinterest.org. 2019-06-30. 2020-10-11.
  8. Web site: SIG-Sauer 516. 2020-10-11. modernfirearms.net. 27 October 2010.
  9. Web site: SIG716. SIG Sauer. en-US. 2019-02-28. https://web.archive.org/web/20190228144443/https://www.sigsauer.com/products/firearms/rifles/sig716/. 28 February 2019. live.
  10. Web site: SIG-Sauer 716. 2020-10-11. modernfirearms.net. 27 October 2010.
  11. Web site: SIG716 . sigsauer.com . March 8, 2020.
  12. Web site: SIG716G2 Patrol . sigsauer.com . March 8, 2020.
  13. Web site: SIG716G2 DMR FDE/BLK . sigsauer.com . March 8, 2020 . 13 February 2018 . https://web.archive.org/web/20180213080029/https://www.sigsauer.com/store/sig716g2-dmr-fde.html . dead .
  14. Web site: 716i TREAD . sigsauer.com . May 1, 2021.
  15. Web site: 716i TREAD . sigsauer.com . May 1, 2021.
  16. Web site: SIG Sauer 716i TREAD: 2020 Reader's Choice for 'Best AR-10 Rifle' . ballisticmag.com . 21 January 2021 . May 1, 2021.
  17. https://www.eldiariodecarlospaz.com.ar/sucesos/2021/3/25/cordoba-el-grupo-eter-recibio-armamento-111866.html
  18. Web site: New rifles delivered for Canadian Forces sniper teams. 10 December 2020.
  19. Web site: POTD: Egyptian Navy SOF with SIG-516s - . 3 April 2022. 20 April 2019 .
  20. Web site: geo-army.ge. dead. https://web.archive.org/web/20140529163926/http://www.geo-army.ge/index.php?option=com_content&view=article&id=819%3A-26052014-&catid=46%3A2&lang=en. 29 May 2014. 2017-06-25. Geo-army.ge.
  21. News: Colclough . George . Explainer: The hidden differences between Hong Kong police rifles . Hong Kong Free Press . 17 May 2020. 4 April 2021.
  22. News: 【CTRU出擊・有片・多圖】模擬恐襲發生 反恐特勤隊新槍截擊槍手 . 4 April 2021 . HK01 . 28 February 2017 . Chinese.
  23. Web site: SIG Sauer SIG716 for India. 2019-12-11. Times of India. en-CA. 2019-02-28. https://web.archive.org/web/20190301074849/https://www.overtdefense.com/2019/02/13/confirmed-sig-sauer-sig716-india/. 1 March 2019. live.
  24. Web site: Indian Army Orders More 716i Rifles from SIG Sauer. 16 July 2020.
  25. News: 2023-12-12 . Defence Ministry clears 70,000 Sig Sauer assault rifles for Indian Army . 2024-01-23 . The Economic Times . 0013-0389.
  26. Web site: SIG516 Patrol: Opsi Berkualitas Tinggi Di Kaliber 5,56mm. indomiliter.com. 3 June 2016. 4 March 2021. id.
  27. Web site: Milipol Asia 2017: Up-gunning Asian security forces Shephard . registration . 2022-04-06 . www.shephardmedia.com . en.
  28. Web site: México llega al Rimpac 2018 equipado con el Sig Sauer 5.56. live. https://web.archive.org/web/20180717115307/https://www.infodefensa.com/latam/2018/07/17/noticia-mexico-llega-rimpac-equipado-sauer.html. 17 July 2018. 18 July 2018.
  29. https://www.asiapacificdefensejournal.com/2020/01/philippines-receive-shipment-of-new-sig.html
  30. Web site: GESTIÓN . NOTICIAS . 2021-02-07 . Vacuna COVID-19: personal de la policía resguarda local de Cenares, donde serán llevadas las 300.000 dosis de Sinopharm nndc PERU . 2023-04-21 . Gestión . es.
  31. News: PERÚ . NOTICIAS EL COMERCIO . 2017-11-22 . Papa Francisco: así se preparan los agentes que lo protegerán en visita [FOTOS] LIMA ]. 2023-04-12 . El Comercio . es.
  32. http://www.specijalne-jedinice.com/PTJ.html#sthash.DmFCcTQu.dpbs
  33. News: Mit dieser Waffe reagiert die Aargauer Polizei auf die Pariser Anschläge . 4 April 2021 . Aargauer Zeitung . 12 January 2016 . German.
  34. Web site: Özel harekâta özel silah | Şanliurfa Haberleri. dead. https://web.archive.org/web/20140325162820/http://www.urfa1.com/ozel-harekata-ozel-silah.htm. 2014-03-25. 2017-06-25. Urfa1.com.
  35. Web site: Ukrainian SBU: Protectors of the Homeland . 18 February 2024 .
  36. News: Scotland Yard creates SAS-style unit to counter threat of terrorist gun attack. Vikram. Dodd. 29 June 2015. The Guardian. 16 December 2016. https://web.archive.org/web/20160928004535/https://www.theguardian.com/uk-news/2015/jun/29/scotland-yard-creates-sas-style-unit-to-counter-threat-of-terrorist-gun-attack. 28 September 2016. live.
  37. Web site: Birmingham accidental firearms discharge investigation complete – Independent Police Complaints Commission. Ipcc.gov.uk. 24 March 2016. https://web.archive.org/web/20160406143607/https://www.ipcc.gov.uk/news/birmingham-accidental-firearms-discharge-investigation-complete. 6 April 2016. live.
  38. Web site: Cincinnati SWAT selects SIG516 CQB; Delaware State Police pick SIG516 . Tactical-life.com . 2015-04-11 . 2017-06-25 . https://web.archive.org/web/20170703160014/http://www.tactical-life.com/news/cincinnati-swat-selects-sig516-cqb-delaware-state-police-pick-sig516/ . 3 July 2017 . live .
  39. Web site: SDPD given new SWAT equipment . Sandra . Phillips . fox5sandiego.com . February 26, 2013 . https://web.archive.org/web/20171017042445/http://fox5sandiego.com/2013/02/26/sdpd-given-new-swat-equipment/ . 17 October 2017.