Warne WAR MAG EXT SW MP 9/40 +0

The Warne WAR MAG EXT SW MP 9/40 +0 is a +0 magazine extension intended for use with 9mm and .40 S&W pistol magazines. It is machined from 6061 T6 aluminum billet and finished with a Type II hardcoat anodize in black. The part includes a finger groove for improved purchase and secures to the magazine body with a Torx head screw and washer retention.

Key Specifications

• Designed for 9mm and .40 S&W pistol magazines.
• Constructed from 6061 T6 aluminum billet for consistent machining and fit.
• Finished with Type II hardcoat anodized — black for surface durability.
• Features a finger groove to aid grasping the magazine base.
• Uses Torx head screw and washer retention for secure installation.
• Extension designation is +0 as indicated in the product name.
• Reported weight is .1 (unit not specified in provided data).

Built from billet aluminum and finished for durability, this extension adds a subtle ergonomic profile without changing the listed extension designation. Its machine-fit construction and positive retention hardware provide a clean, functional upgrade for users seeking consistent magazine handling characteristics.