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Description
Link for Information and Image: en.wikipedia.org/wiki/AR-57

Website: en.wikipedia.org/wiki/Main_Pag…

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. It was designed by AR57 LLC[3] was produced by AR57 of Kent, Washington, USA. The company is now defunct. 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 and was marketed as a competitor to the P90 and other personal defense weapons.

Type Semi-automatic carbine Personal defense weapon
Place of origin United States
Production history
Designed 2008–2016
Manufacturer AR57 LLC
Unit cost US$1,099
Produced 2008–Present
Specifications
Mass 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]

Description
Link for Information and Image: en.wikipedia.org/wiki/AR-57

Website: en.wikipedia.org/wiki/Main_Pag…

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. It was designed by AR57 LLC[3] was produced by AR57 of Kent, Washington, USA. The company is now defunct. 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 and was marketed as a competitor to the P90 and other personal defense weapons.

Type Semi-automatic carbine Personal defense weapon
Place of origin United States
Production history
Designed 2008–2016
Manufacturer AR57 LLC
Unit cost US$1,099
Produced 2008–Present
Specifications
Mass 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]