Geissele Maritime Bolt Catch

Geissele Maritime Bolt Catch

The Maritime Bolt Catch represents a thoughtful evolution of a fundamental AR-platform component. Geissele Automatics engineered this part with operational realities in mind—specifically, the needs of shooters who demand reliability under demanding conditions.

Design and Functionality

This bolt catch is a drop-in replacement for any mil-spec M16/M4 lower receiver. The increased surface area of the control levers makes the bolt catch easier to manipulate when locking back the bolt or releasing it during magazine changes.

Ambidextrous Operation

Left-handed shooters will appreciate the extended controls. Rather than breaking their grip to manipulate the bolt catch, southpaws can easily reach the controls using their index finger. This design promotes faster, more efficient magazine changes and bolt-locking procedures without compromising shooting position.

Surface Treatment and Durability

Aggressive checkering covers both control levers, providing a textured surface that delivers positive feedback to your hand—whether you're wearing gloves or operating in low-light conditions. The bolt catch is manufactured from properly heat-treated 8620 steel and finished with manganese phosphate coating, ensuring durability and corrosion resistance.

The Bottom Line

This is a no-compromise upgrade to the standard bolt catch. It functions flawlessly with any mil-spec lower receiver and serves as a genuine enhancement to the AR platform.