The AR-57 is a 5.7×28mm personal defense weapon, based on the AR-15 platform. It uses an axially-mounted P90 magazines placed above the handguard on the upper receiver, while the default magwell on the lower receiver serves as an ejection port.

See also

• AR-57 (Girls' Frontline)
• FN Five-SeveN
• List of Weapons

External links

• Wikipedia: AR-57