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AR15.COM
5/8/2024 6:07:17 PM EDT
Will you guys have any pins to work with your triggers and colt m5 lowers? the m5 lower is reinforced around the fgc pins requiring slightly longer pins.

thanks
5/9/2024 3:14:24 PM EDT
[#1]
Originally Posted By teutonicsteel:
Will you guys have any pins to work with your triggers and colt m5 lowers? the m5 lower is reinforced around the fgc pins requiring slightly longer pins.

thanks
View Quote

Could you reuse the colt pins?
5/13/2024 2:26:43 PM EDT
[#2]
Quote History
Originally Posted By call_me_ski:

Could you reuse the colt pins?
View Quote


You are supposed to use geissele pins with their triggers, hence the question.
5/14/2024 9:19:33 AM EDT
[#3]
Hey Guys! Sorry for the delay, I was trying to accumulate more information regarding your question.

We had a mutual customer reach out to Colt to inquire if the M5 pins were the same as the 901 pins. Since we already manufacture and sell the 901 pins, they could then be used for the M5. According to Colt, they are not the same pins. With that being said, I am seeing feedback from users on ar15.com and other forums that they have used our pins with success.

https://geissele.com/trigger-hammer-pins-for-colt-901.html

Unfortunately we cannot recommend them for the M5 and do not have plans to make dedicated M5 pins at this time. We have to defer to Colt's findings, and if they are not interchangeable per the manufacturer, we respect their expertise. Users could be finding success, but we are unsure of the reliability/long term use of unapproved modifications. We always recommend using the appropriately sized Geissele pins for our triggers.  

We always want to make sure you have a reliable and functional product and hope you can understand our position.
7/10/2024 3:16:30 PM EDT
[Last Edit: Inland Armory][Edited] [#4]
Perhaps someone else should check with Colt and get back to the group on this.  When I checked, they went to the build sheet and said the trigger pins listed were the same as the 901.
6/20/2025 11:19:16 AM EDT
[#5]
Here is what I am doing with my Colt M5 lower to get antiwalk pins:



I am going to use *two* threaded dowel pins (off the shelf antiwalk pins). I am going to cannibalize one pin to make threaded spacers for each side.

I am going to get slightly longer cap screws. For one side of the OEM dowel pin I will screw in a slightly longer screw that has a threaded spacer cut from the second dowel pin, locktighted in place. Sized so that the center dowel pin & spacer is resting on the frame. Same for the other side. This should do the fix.  I will post pics when done.

6/20/2025 12:30:52 PM EDT
[#6]
Please let us know how it goes! Obviously we cannot gurantee functionality with other pins and alway recommend using factory pins, but with the M5 we understand they incompatible by nature of the lower.

Regardless, we hope this works well for you!

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