Engineering:AR-57
The AR-57, also known as the AR Five Seven, is available as either an upper receiver for the AR-15/M16 rifle or a complete rifle, firing 5.7×28mm rounds from standard FN P90 magazines.[1][2]
It was original designed by Rhineland Arms but produced by AR57 LLC.[3][4]
Design
The AR-57 PDW upper is a new design on AR-15/M16 rifles, blending the AR-15/M16 lower with a lightweight, monolithic upper receiver system chambered in 5.7×28mm. This model is also sold as a complete rifle, supplied with two 50-round P90 magazines.[5] The magazines mount horizontally on top of the front handguard, with brass ejecting through the magazine well. AR-15/M16-based STANAG magazines can be used to catch spent casings by taking out the feed lips, spring and follower.[6] Sheet metal brass catchers can also be used on the AR-15/M16 lower.[6]
Various scopes and other accessories can be mounted on the picatinny rail.[7]
Unlike the standard AR-15 configuration which uses a gas-tube system, the AR-57 cycles via straight blowback[broken anchor].[8] A fully automatic version exists and was marketed as a competitor to the P90 and other personal defense weapons.[9]
Suppressed versions are also available.[9]
User
Venezuela: Venezuelan soldiers who defected to Juan Guaidó were photographed using an AR-57 during the crisis in Venezuela in 2019.[10][11]
References
- ↑ "Gun Review: The Fully Functional AR57" (in en-US). 2022-06-30. https://americanshootingjournal.com/fully-functional-five-seven/.
- ↑ D'Costa, Ian (2020-05-06). "The AR-57 Could Be the Weirdest AR Variant You'll Ever See" (in en-US). https://www.breachbangclear.com/ar-57-ar-variant/.
- ↑ "Rhineland arms". http://www.troupsystems.com/ar57%20history.htm.
- ↑ https://www.forgottenweapons.com/ar57-fun-times-with-a-tiny-carbine-aka-fss-hurricane/
- ↑ Cite error: Invalid
<ref>tag; no text was provided for refs namedar57rifles - ↑ 6.0 6.1 "The Second Generation AR57: Drop-in 5.7 Upper For Your AR - Small Arms Review" (in en-US). 2023-01-01. https://smallarmsreview.com/the-second-generation-ar57-drop-in-5-7-upper-for-your-ar/.
- ↑ "P90 Goes AR-15 - SWAT Survival | Weapons | Tactics" (in en-US). 2022-07-06. https://www.swatmag.com/article/p90-goes-ar-15/.
- ↑ "Patent US20110168009". https://patents.google.com/patent/US20110168009.
- ↑ 9.0 9.1 "Sneak peek of suppressed full auto AR57 -". 30 November 2008. http://www.thefirearmblog.com/blog/2008/11/30/sneak-peek-of-suppressed-full-auto-ar57/.
- ↑ "POTD: A Venezuelan AR57 Appears -". 9 May 2019. https://www.thefirearmblog.com/blog/2019/05/09/potd-a-venezuelan-ar-57-appears/.
- ↑ Trevithick, Joseph (2019-04-30). "Venezuela's Capital Is In The Grips Of Violent Upheaval And Here's What You Should Know" (in en). https://www.thedrive.com/the-war-zone/27746/venezuelas-capital-is-in-the-grips-of-violent-upheaval-and-heres-what-you-should-know.
External links
Template:ArmaLite AR-10 derivatives
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