The Geissele Maritime Bolt Catch is exactly what you need for your AR-15/M16. With an increased surface area and aggressive checkering, this bolt catch is easy to use with gloves or in low light conditions. The extended controls make it perfect for left handed shooters, and the textured surface provides positive feedback when in use. Get the reliability and functionality you need with the Geissele Maritime Bolt Catch.
NOTE: Required MIL-SPEC bolt catch spring and plunger are not included.
Compatibility with billet AR-15 lower receivers is unknown. Please also note that the extended controls of the Geissele Maritime Bolt Catch will partially cover the hammer pin hole. A small punch may be required to push the hammer pin out of the receiver from the left side, and the hammer pin must be installed from the right side of the receiver.