Supriya Ghosh

AR 57

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Place of origin  United States
Unit cost  US$1,099
Manufacturer  AR57 LLC
AR-57
Type  Semi-automatic carbine Personal defense weapon
Weight  7.45 lb (3.4 kg) (AR-57 PDW)
Length  30 in (762.0 mm) (AR-57 PDW)

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 FN P90 magazines. It was designed by AR57 LLC 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. 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. A full auto version exists marketed as a competitor to the P90 and other personal defense weapons.

References

AR-57 Wikipedia


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