Armaspec B1 Extended Magazine Release Button AR-15/AR-10 Black

The Armaspec B1 Extended Magazine Release is a drop-in upgrade that extends the length of the factory magazine release button on AR-15 and AR-10 pattern lower receivers. Designed to make dropping the magazine faster and more intuitive, the B1 lets the shooter release the magazine without breaking their firing grip - a meaningful advantage during reloads under stress, with gloves on, or when running a magnified optic that keeps the support hand high on the receiver.

Built as a direct replacement for the standard mag release button, the ARM106-BLK installs in place of the factory component without permanent modification. The black finish blends cleanly with most factory and aftermarket lower receivers, and the unit is compatible with all standard 5.56/.223 and 7.62/.308 AR-pattern lower receivers.

Manufactured by Armaspec, the B1 Extended Magazine Release is a simple, purpose-built control upgrade for the AR platform. Whether you are building a competition rifle, a defensive carbine, or just want a more positive magazine release on a range gun, the B1 delivers extended reach and confident actuation in a compact, drop-in package.