- Product Code: 55DA1AE
CMMG Zeroed Anti-Walk Trigger Pins are trigger mechanism pins for AR-type firearms, designed to prevent mil-spec style pins from moving out of the receiver during firing; especially in drop-in cassette-style trigger packs, the pins might otherwise start to slide out. Drop-in triggers improve the trigger feel and are an easy upgrade, but they can stress the pins differently. These anti-walk pins solve this issue with a simple side screw attachment, and the package includes everything needed: two pins and four Torx T8 screws. Effectively prevents pin movement and includes screws needed for installation.
The pins are durable in construction and sized to fit AR-type receivers with standard .154 in (3.91 mm) trigger and hammer pin holes. The attachment is done with screws on both ends, which distributes the load and keeps the pins in place without additional support parts. Torx T8 screws ensure secure tightening and compatibility covers typical aftermarket drop-in triggers. Note: not intended for Colt large pin receivers with a pin diameter of .170 in (4.32 mm).
The anti-walk design improves usability and reduces the need to repeatedly check the pins. The side screws secure the pin firmly to the receiver, supporting the trigger operation without uneven stress on the receiver holes. Designed for demanding use and works well especially with cassette-type trigger packs.
CMMG Zeroed Anti-Walk Trigger Pins – Features:
- Compatibility: AR-type receivers, standard 3.91 mm (0.154 in) pin holes
- Fitment note: not for Colt large pin 4.32 mm (0.170 in) receivers
- Purpose: prevents trigger mechanism pins from moving (anti-walk)
- Package contents: 2 pcs trigger mechanism pins and 4 pcs Torx T8 screws
- Attachment: screws on both ends ensure secure fit
- Screw type: Torx T8
- Material: durable steel
- Manufacturer: CMMG
- Product line: ZEROED
- Usage: effective solution especially for cassette-style drop-in trigger packs; also suitable for traditional trigger mechanisms
Summary: these anti-walk pins are a sensible choice when you want to ensure the trigger mechanism pins stay in place without additional support parts. They offer a clear advantage with drop-in triggers and are suitable for builds and upgrades where a reliable and neat solution is desired. Easy installation and reliably secure attachment make them practical for enthusiasts.
Usage recommendation: recommended when installing a drop-in trigger pack or when you want to ensure the trigger mechanism pins stay secure in an AR-type receiver without additional adjustments. A good choice for upgrades and maintenance.
Product text updated 6.3.2026.
