Geissele Automatics Maritime Bolt Catch

Manufactured by Geissele Automatics
SKU: GAT-08-153
MPN: 08-153
Manufactured by Geissele Automatics
14 Reviews

In Stock

Standard orders will ship out the same business day if ordered by 3:30 pm CST. FFL orders will ship within 5 business days or less as long as we have the information for the transfer destination.



The Geissele Maritime Bolt Catch is designed with the warfighter in mind and will work with any lower receiver designed to accept a MIL-SPEC AR-15/M16 bolt catch. The increased surface area promotes ease of function when locking back or releasing the bolt. Aggressive checkering covers the surface of the levers giving the Geissele Maritime Bolt Catch a textured surface that enables positive feedback when being used with gloves or at night.
In addition, the extended controls add an increased functionality for left handed shooters who no longer must break their grip to manipulate the 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.

  • Heat treated 8620 steel.
  • Manganese phosphate coated
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BrandGeissele Automatics
FinishManganese Phosphate
MaterialSteel - 8620 Alloy

WARNING: This Product can expose you to chemicals which is known to state of California to cause Cancer and Reproductive Harm. For more information, see


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Easy install and is a great addition to any setup over the Mil-spec option.

The only bolt catch you need


This bolt catch is amazing, well made, and functions perfectly. Love the extended surface area top and bottom, makes charging the rifle a lot easier. The textured surface ensures contact is unmistakable, no more fumbling my hand around like with the mil-spec bolt catch my AR came with from the factory. Even when it's a part as small as this, Geissele is capable of showing off its superior designs and craftsmanship.

Works perfectly

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Lil big and kinda bulky but works great and this thing is tough

nice upgarde

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i replaced the bad lever with this, in my opinion this bolt release from Giselle is much better and looks nicer