Ruger AI-Style Detachable Magazine for .300 Win Mag Ruger Hawkeye Blued 5 Round. 300 Winchester Magnum based family of cartridges and is compatible with long action AICS-spec bottom metal and Magnum cartridges built on a 0.530" belted case head. It accepts a cartridge overall length of up to 3.50". 5-round capacity magazine is made from next-generation impact and crush resistant polymer. Self-lubricating follower and long-life stainless-steel spring provide increased reliability. Paint pen dot matrix panels on the bottom of the body to allow for identification marking. Flared floor plate aids magazine handling and is easy to disassemble for maintenance. Specifications for Ruger AI-Style Detachable 5 Round Magazine for .300 Win Mag Ruger Hawkeye Blued: Manufacturer: Ruger Color: Black Finish: Blued Fabric/Material: Polymer Magazine Capacity: 5 Round Caliber: .300 Winchester Magnum Gun Make: Ruger Gun Model: Ruger Hawkeye Gun Type: Rifle Quantity: 1 Package Contents: Ruger AI-Style Detachable 5 Round Magazine for .300 Win Mag Ruger Hawkeye Blued What firearm models does the manufacturer say Ruger AI-Style Detachable 5 Round Magazine for .300 Win Mag Ruger Hawkeye Blued is compatible with? The manufacturer suggests that Ruger AI-Style Detachable 5 Round Magazine for .300 Win Mag Ruger Hawkeye Blued is compatible with Ruger HawkeyeRuger 90145: AI-Style Detachable Magazine for .300 Win Mag Ruger Hawkeye Blued 5 Round