| 词条 | Ruger SR-556 |
| 释义 |
| name = Ruger SR-556 | image = Ruger-SR556-Rifle.jpg | image_size = 300 | caption = Ruger SR-556 - Standard Configuration (discontinued) | origin = United States | type = AR-15 style semi-automatic rifle | is_ranged = YES | service = | used_by = | wars = | designer = | design_date = 2009 | manufacturer = Sturm, Ruger & Co. | unit_cost = | production_date = 2009–present | number = | variants = | spec_label = Standard | weight = {{convert|7.94|lbs|kg|abbr=on|order=flip}}[1] | length = {{convert|32.75|in|mm|abbr=on|order=flip}} (collapsed) {{convert|36|in|mm|abbr=on|order=flip}} (extended)[1] | part_length = {{convert|16.12|in|mm|abbr=on|order=flip}}[1] | width = {{convert|2.5|in|mm|abbr=on|order=flip}}[1] | height = {{convert|7.75|in|mm|abbr=on|order=flip}}[1] | diameter = | crew = | passengers = | cartridge = 5.56 NATO | cartridge_weight = | caliber = | barrels = 1:{{convert|9|in|order=flip}} | action = Gas-operated, rotating bolt | rate = | velocity = | range = | max_range = | feed = STANAG magazine | sights = }} The SR-556 / AR-556 is an AR-15 style semi-automatic rifle manufactured by U.S. firearms company Sturm, Ruger & Co. The rifle was introduced in 2009 and as a .308 AR-10 variant, the Ruger SR-762.[2] It is one of several 21st-century AR-15 rifles to use gas piston operation (SR-556). In January 2016 Ruger discontinued all SR-556 rifles and introduced a new takedown variant with a lightweight KeyMod handguard. OverviewThe rifle featured a "two-stage" piston mechanism as opposed to the standard direct impingement system of the AR-15. Gas flow is controlled by a four position regulator. Several key parts, such as the short stroke gas piston, gas regulator, and bolt/carrier group are chrome plated. The bolt carrier features an integral lug in place of the AR-15's gas key. The flash hider is similar to Ruger's AC-556 and Mini-14GB.[3] The rifle includes a number of other manufacturer's parts such as a Troy Industries railed handguard and Samson folding iron sights, a Hogue rubberized pistol grip, and three Magpul PMAG 30-round magazines. The SR-556SC comes with three 10-round magazines and does not have the flash hider or collapsible stock, making it compliant in several states with restrictive rifle laws. The barrel is {{convert|16.12|in|mm|order=flip}}, chrome lined, and features a six groove, right hand, 1:{{convert|9|in|order=flip}} twist.[2]In August 2010, Ruger announced that the rifle would be offered in the 6.8mm Remington SPC cartridge.[4] Ruger's introduction of the SR-556 was met with some criticism for its high price tag of around U.S. $2,000. Ruger products are usually known for affordability, but the SR-556 is essentially a regular AR-15 albeit with a different, more complicated operating system, unlike cheaper alternatives, like the Smith & Wesson M&P Sport and Sport II model rifles, of which the original Sport model lacked a forward assist and dust cover. The SR-556 was also criticized for its heavier weight than other AR-15s. Ruger addressed these shortcomings by introducing a lighter and less expensive rifle, the SR-556E.[5] Ruger AR-556{{Infobox weapon| name = Ruger AR-556 | image = Ruger AR-556.jpg | image_size = 300 | caption = Ruger AR-556 | origin = United States | type = AR-15 style semi-automatic rifle | is_ranged = YES | service = | used_by = | wars = | designer = | design_date = 2014 | manufacturer = Sturm, Ruger & Co. | unit_cost = | production_date = 2014–present | number = | variants = | spec_label = Standard | weight = {{convert|6.5|lbs|kg|abbr=on|order=flip}} | length = {{convert|32.25|in|mm|abbr=on|order=flip}} (collapsed) {{convert|35.50|in|mm|abbr=on|order=flip}} (extended) | part_length = {{convert|16.10|in|mm|abbr=on|order=flip}} | width = {{convert|2.5|in|mm|abbr=on|order=flip}} | height = {{convert|8|in|mm|abbr=on|order=flip}} | diameter = | crew = | passengers = | cartridge = 5.56x45mm/.223 Remington | cartridge_weight = | caliber = | barrels = 1:{{convert|8|in|order=flip}} | action = Gas-operated, rotating bolt | rate = | velocity = | range = | max_range = | feed = 10- or 30-round detachable box magazine | sights = }} In September 2014, Ruger announced the AR-556, a variant that utilizes traditional direct impingement action, intended to compete with other entry-level AR-15s. It was produced to compete with other AR-15 models, including the Smith & Wesson M&P15 Sport. Criminal Use
GallerySee also
References1. ^1 2 3 4 {{cite web| title=Ruger SR-556| publisher=Sturm, Ruger, and Co., Inc| url=http://www.ruger.com/products/sr556Standard/models.html| accessdate=9 December 2012| deadurl=yes| archiveurl=https://web.archive.org/web/20130115043841/http://www.ruger.com/products/sr556Standard/models.html| archivedate=15 January 2013| df=}} 2. ^1 Gilbert, Glenn M., Ruger's SR-556: Ready To Run, Right Out Of The Box, American Rifleman, October 2009 3. ^{{Cite book|title=Gun Digest Book of the AR-15|chapter=The Ruger SR-556|surname=Sweeney|given=Patrick|authorlink=Patrick Sweeney (gunsmith)|publisher=Gun Digest Books|year=2010|page=131|isbn= 978-1-4402-1376-2 }} 4. ^{{cite web|url=http://www.gunblast.com/Ruger-SR556-68.htm|title=Ruger SR-556 Semi-Auto Rifle Chambered for the 6.8mm SPC Cartridge|website=www.gunblast.com|accessdate=17 April 2018}} 5. ^{{cite journal|title=Ruger's SR-556E 5.56mm NATO|page=56|last=Cumpston|first=Mike|journal=Guns|volume=51|issue=12}} 6. ^{{cite web|last=Pollard|first=Chris|url=https://www.thesun.co.uk/news/8649259/brenton-tarrant-new-zealand-shooting-killer/amp/|title=WORDS OF HATE Crazed New Zealand mosque shooter Brenton Tarrant wrote names of modern terrorists and far-right slogans on his guns and ammunition|publisher=The Sun|date=March 15, 2019|accessdate=March 15, 2019}} 7. ^{{cite web|url=http://makassar.tribunnews.com/amp/2019/03/16/isi-tulisan-di-senjata-milik-brenton-tarrant-penembak-di-masjid-selandia-baru-senapan-tipe-ar-15|title=Isi Tulisan di Senjata Milik Brenton Tarrant Penembak di Masjid Selandia Baru, Senapan Tipe AR 15|publisher=Tribun-Timur.com|date=March 15, 2019|accessdate=March 15, 2019}} External links{{commons category}}
7 : 5.56 mm firearms|Rifles of the United States|Semi-automatic rifles|Short stroke piston firearms|Ruger rifles|ArmaLite AR-10 derivatives|Weapons and ammunition introduced in 2009 |
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