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Questions & Answers
Will this work with a AR-9 Glock Mag platform? Expert Answer

The Geissele Maritime Bolt Catch works with Mil-Spec dimension AR15's and may not be compatible with Billet receivers according to the manufacturer. So if your AR9 is Mil-Spec dimensions it might work.

by Hunter, Gear Expert, May 20, 2022
i am a lefty will this bolt catch interfere with my ambidextrous mag release. Expert Answer

Possibly, it will depend on the location of your mag release, you can always contact the manufacture as well.

by Ben, Gear Expert, May 20, 2021
Customer Reviews
Helpful Positive Review
Favorite Bolt Catch I Own by DM354, Verified Owner, January 6, 2025
I prefer this over any standard bolt catch as well as the bolt catch on my Daniel Defense. Pretty inexpensive upgrade to make life easier.
1/1 found this helpful
Helpful Positive Review
Geissele Maritime Bolt Catch by Al, Verified Owner, May 17, 2025
It’s a little larger than I expected but it’s still way better than the original version.
1/1 found this helpful
Helpful Positive Review
Perfect solution by Mark Guy, Verified Owner, August 20, 2024
The second flaw of my left hand Stag Arms AR-15 was the pitifully small bolt catch. The Geissele Maritime rectifies the issue of locking or releasing the bolt with your left index finger. The paddles are effective without snagging clothes or interfer...
Read More...
1/1 found this helpful
Helpful Positive Review
I bought several of these and several Ambi mag releases. Except for my PSA, I could not use this product and the Ambi mag release together. You have to decide which you want. One other negative is that it comes with the lever and roll pin. For the p...
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4/4 found this helpful
Helpful Positive Review
Improvement but at a cost by Packy14, Verified Owner, June 27, 2022
Just installed this.... but it is a huge pain in the butt to then change a trigger... especially if its a Geissele and you use their roll pin technique... because this will prevent you kicking out the small roll pin... you can only insert and remove ...
Read More...
7/9 found this helpful
Helpful Positive Review
perfect feel by corbear, Verified Owner, November 22, 2023
It is just the right size. I’ve tried a few different ones and this is by far my favorite.
1/1 found this helpful
Read All 121 Reviews
Color:
Black
Condition:
New

Code: 1TO-BCR-RS627-GEI08-153

MPN: 08-153

UPC: 817953022429

List: $48.09Save 35%
$31.49

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OP Bucks$2.63

made-in-usa-flag Made in USA

Help support American manufacturing! Marked models of this product have gone through rigorous review and been certified by the manufacturer as Made in the USA.

Product Info for Geissele Maritime Bolt Catch

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 M16/M4 Carbine bolt catch. The increased surface area promotes ease of function when locking back the bolt or releasing the bolt after a magazine change. In addition, the extended controls add an increased functionality for left handed shooters who no longer have to break their grip to manipulate the bolt catch. Left handed shooters can easily reach the controls using the index finger of their left hand making magazine changes and locking the bolt back much more fast and efficient. Aggressive checkering covers the surface of the levers giving the Geissele Maritime Bolt Catch a textured surface that enables positive feedback to the shooters hand when being used with gloves or at night.image

WARNING: California`s Proposition 65

Specifications for Geissele Maritime Bolt Catch:

Manufacturer: Geissele
Color: Black
Condition: New
Country of Origin: USA

Package Contents:

  • Geissele Maritime Bolt Catch

Geissele Maritime Bolt Catch Orderable Models

List of Orderable Models

  • Geissele Maritime Bolt Catch, Black, GEI08-153 , MPN: 08-153 , UPC: 817953022429 , Code: 1TO-BCR-RS627-GEI08-153

Geissele Maritime Bolt Catch Unavailable & Discontinued Models

List of Unorderable Models

  • USED, Geissele Maritime Bolt Catch, Black, GEI08-153 , MPN: 08-153-EDEMO , Code: 1TO-BCR-RS627-GEI08-153-EDEMO-SC-C
  • USED Geissele Maritime Bolt Catch, Black, GEI08-153, EDEMO14, Used, Condition Good, Inspect and Rebox , MPN: 08-153-EDEMO14 , Code: 1TO-BCR-RS627-GEI08-153-EDEMO-RE-C
  • USED, Geissele Maritime Bolt Catch, Black, GEI08-153 , MPN: 08-153-EDEMO , Code: 1TO-BCR-RS627-GEI08-153-EDEMO-IN-C
  • USED Geissele Maritime Bolt Catch, Black, GEI08-153, EDEMO11, Condition Fair, Other , MPN: 08-153-EDEMO11 , Code: 1TO-BCR-RS627-GEI08-153-EDEMO-OT-D
  • USED Geissele Maritime Bolt Catch, Black, GEI08-153, EDEMO15, Used, Condition Fair , MPN: 08153-EDEMO15 , Code: 1TO-BCR-RS627-GEI08-153-EDEMO15
  • USED Geissele Maritime Bolt Catch, Black, GEI08-153, EDEMO12, Used, Condition Fair , MPN: 08-153-EDEMO12 , Code: 1TO-BCR-RS627-GEI08-153-EDEMO12
  • USED Geissele Maritime Bolt Catch, Black, GEI08-153, EDEMO17, Used, Condition Like New , MPN: 08153-EDEMO17 , Code: 1TO-BCR-RS627-GEI08-153-EDEMO17
  • USED Geissele Maritime Bolt Catch, Black, GEI08-153, EDEMO16, Used, Condition Fair , MPN: 08153-EDEMO16 , Code: 1TO-BCR-RS627-GEI08-153-EDEMO16
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