AR-57

AR-57
The AR-57
Type Semi-automatic carbine Personal defense weapon
Place of origin United States
Production history
Designed 2008–present
Manufacturer AR57 LLC
Unit cost US$1,099
Specifications
Weight 7.45 lb (3.4 kg) (AR-57 PDW)[1]
Length 30 in (762.0 mm) (AR-57 PDW)[1]
Barrel length 16 in (406.4 mm) (AR-57 PDW)[1]
Cartridge FN 5.7×28mm[2]
Feed system FN P90 detachable box magazines[2]
Sights M1913 Picatinny rail[2]

The AR-57, also known as the AR Five Seven , is an upper receiver for the AR-15/M16 rifle lower receiver, firing 5.7×28mm rounds from standard 5.7x28mm magazines. It was designed by AR57 LLC[3] and is currently produced by AR57 of Kent, Washington, USA. 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 FN 5.7×28mm. This model is also sold as a complete rifle, supplied with two 50-round P90 magazines.[1] The magazines mount horizontally on top of the front handguard, with brass ejecting through the magazine well. Hollow AR-15 magazines can be used to catch spent casings.

Unlike the standard AR-15 configuration which uses a gas-tube system, the AR-57 cycles via straight blowback.[4] A full auto version exists marketed as a competitor to the P90 and other personal defense weapons.[5]

See also

References

  1. 1 2 3 4 "AR Five-seven Rifles: AR57A1 PDW Carbine". AR57 LLC. Retrieved 2010-04-05.
  2. 1 2 3 "AR Five-seven Image Gallery". AR57 LLC. Archived from the original on 2011-07-07. Retrieved 2010-04-05.
  3. ↑ "{title}". Archived from the original on 2010-01-13. Retrieved 2010-01-13.
  4. ↑ "Patent US20110168009". Retrieved 2012-12-05.
  5. ↑ http://www.thefirearmblog.com/blog/2008/11/30/sneak-peek-of-suppressed-full-auto-ar57/
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