Geissele Maritime Bolt Catch

Geissele Maritime Bolt Catch

The Geissele Maritime Bolt Catch is an enhanced replacement for the mil-spec M16/M4 bolt catch. Its larger surface area makes it easier to lock the bolt back or release it after a magazine change, and the extended controls let left-handed shooters operate it without breaking their grip.

• Fits any lower receiver designed to accept a mil-spec M16/M4 bolt catch
• Increased paddle surface area for locking and releasing the bolt
• Extended controls reachable with the index finger of the left hand
• Aggressive checkering for positive feedback with gloves or in the dark
• Heat-treated 8620 steel with manganese phosphate coating

The bolt catch spring, plunger and roll pin are not included – reuse those from your mil-spec bolt catch. The extended control partly covers the hammer pin hole, so the hammer pin should be installed from the right side of the receiver (a smaller punch may be needed to remove it). Geissele states that compatibility with billet lower receivers is unknown.

Specifications:

• Material: 8620 steel, heat treated
• Finish: Manganese phosphate
• Compatibility: Mil-spec M16/M4/AR-15 lower receivers
• Required (not included): Bolt catch spring, plunger, roll pin
• Manufacturer part number: 08-153