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Q&A for CMC Triggers Anti Walk AR-15 Trigger Pin Kit — 37 Questions & 37 Answers

Name CMC Triggers Anti Walk AR-15 Trigger Pin Kit (4.2)
$15.00 $14.99
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Q
Peter, guest, from PA, United States, asked on December 27, 2020

What size pins will I need for the Springfield Armory Saint Victor 7.5” 556 model?

Expert Answer
A
Answered by Ben, Gear Expert, from UT, United States, on March 19, 2021

The small pins should work.

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Q
chris, guest, from LA, United States, asked on January 31, 2025

what diameter are these pins, what length are they

Expert Answer
A
Answered by Ethan, Gear Expert, from IL, United States, on January 31, 2025

The small trigger pins are 0.154", while the large trigger pins are 0.172". Small triggers pins fit if your rifle is NOT a Colt, or your Colt was produced before 1991 or after 2009. Large trigger pins fit Colt AR-15 rifles produced between 1991 and late 2009.

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Q
Shawn Rankins, member, from NV, United States, asked on September 21, 2022

What size for a Timney drop in trigger will work?

Expert Answer
A
Answered by Ethan, Gear Expert, from IL, United States, on September 28, 2022

LARGE PIN (.172 Ø) – Colt is the only AR brand to produce both small and large diameter pins in their triggers. Colt AR-15 rifles produced between 1991 and late 2009 commonly take a LARGE PIN.
SMALL PIN (.154 Ø) – If your AR rifle is NOT a Colt or your Colt was produced before 1991 or after 2009 it will take a SMALL PIN.

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Q
Benjamin Hunter, member, from CA, United States, asked on September 03, 2022

Is there a difference between these and the pins that are included with CMC Triggers for AR15/10 small pins ?

Expert Answer
A
Answered by Ethan, Gear Expert, from IL, United States, on September 13, 2022

No. CMC triggers will include this exact CMC Anti-Walk Pin Set.

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Q
TEDNA1, member, from CT, United States, asked on April 10, 2022

Are these pins anodized stainless steel?

Expert Answer
A
Answered by Hunter, Gear Expert, from OH, United States, on April 26, 2022

CMC Triggers does not state if the CMC Triggers Anti Walk AR-15 Trigger Pin Kit is anodized Stainless Steel. I recommend contacting the manufacturer for that information.

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Q
Jacob, guest, from OH, United States, asked on March 31, 2022

Which size pins should I buy for my Sig M400 tread

Expert Answer
A
Answered by Hunter, Gear Expert, from OH, United States, on April 15, 2022

You will want the small pin CMC Triggers Anti Walk AR-15 Trigger Pin Kit for a Sig M400 TREAD.

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Q
Anthony Valdez, member, from HI, United States, asked on August 29, 2021

Will this pins fit in my Aero Precision M4 ?

Expert Answer
A
Answered by Ethan, Gear Expert, from IL, United States, on March 11, 2022

Yes. The CMC Triggers Anti Walk AR-15 Trigger Pin Kit will fit your Aero Precision AR15 lower receiver. You would need to use the small pins (.154" x .885").

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Q
Anthony, guest, from CA, United States, asked on June 23, 2021

Will this work on a cmmg lower and alg qms trigger? My trigger pin keeps moving around everytime i shoot

Expert Answer
A
Answered by Ryan Tarczynski, Gear Expert, from IL, United States, on June 23, 2021

I would recommend emailing us at techsales@opticsplanet.com to help you further.

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Q
DGV, member, from AR, United States, asked on June 01, 2021

What are the measurements/dimensions of the small pins? I didn't see it listed.

Expert Answer
A
Answered by Ryan Tarczynski, Gear Expert, from IL, United States, on June 23, 2021

LARGE PIN (.172 Ø) - Colt is the only AR brand to produce both small and large diameter pins in their triggers. Colt AR-15 rifles produced between 1991 and late 2009 commonly take a LARGE PIN.

SMALL PIN (.154 Ø) – If your AR rifle is NOT a Colt or your Colt was produced before 1991 or after 2009 it will take a SMALL PIN.
M&P 15-22 COMPOSITE PIN – The Smith & Wesson® M&P® 15-22 or any wider than standard receiver will use a SMALL PIN diameter but requires a longer pin length and will take an M&P 15-22 COMPOSITE PIN.

CMC Triggers offer all versions of their Drop-in AR Trigger in SMALL PIN, LARGE PIN, and M&P 15-22 COMPOSITE PIN. If you are still unsure of the pin diameter needed for your rifle you can take a measurement by pressing a pin far enough out of the receiver to measure its diameter, .172 Ø for LARGE and 154 Ø for SMALL.

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Q
JohnS, member, from FL, United States, asked on January 15, 2021

Why do some anti walk trigger and hammer pins have grooves for trigger and hammer springs and some don’t?

Expert Answer
A
Answered by Ben, Gear Expert, from UT, United States, on March 19, 2021

So that way the pin can accommodate different anti walk products.

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