Area 419 Firearms +4 Universal Magazine Extension - Black

The Area 419 +4 Magazine Extension is a universal magazine extension finished in black, engineered to add four additional rounds of capacity to a range of popular bolt-action rifle magazines.

Built around a truly universal design, this extension is compatible with ARC 10-round magazines, AICS 5 and 10-round magazines, and Accurate Mag magazines for standard bolt-face calibers. Whether you run a precision rifle in a magazine-fed chassis or a traditional bolt-action setup, the +4 extension adds extra capacity without forcing you to swap out your existing magazine bodies.

The signature Area 419 design lets the column of rounds travel straight down into the extension, preserving reliable feeding geometry with your existing magazine spring and follower. Finished in a durable black coating and precision-machined to fit the listed magazine patterns, the +4 offers a straightforward four-round capacity upgrade for precision and hunting rifle platforms.