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Armaspec

Anti-Walk Trigger/Hammer Pins W/ Keys

Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.

Set Trigger

An anti-walk design

Standard .154

Size for AR-15 and AR

Secured Two

Two hex screws to help

Includes Keys

Required for installation

Machined From

A black-oxide finish

$10.79
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SKU: 100038378

Overview

For builders looking to keep a mil-spec AR lower properly secured, this set is designed to help prevent trigger and hammer pins from shifting during use. It is made for standard .154-size receivers and fits both AR-15 and AR .308 platforms. The pins are machined from stainless steel with a black-oxide finish and are held in place with two hex screws, with the required keys included for installation. Armaspec also recommends using thread-locking compound on the screws during setup.

Why Hunters Choose the Armaspec

Anti-walk Design

Helps keep trigger and hammer

Includes Both

Trigger and hammer pins in

Standard .154

Size fits AR-15 and AR

Two Hex

Screws secure the pins during

Keys Required

For installation are included

Key Features

  • Set of trigger and hammer pins with an anti-walk design
  • Standard .154 size for AR-15 and AR .308 receivers
  • Secured with two hex screws to help keep pins in place
  • Includes the keys required for installation
  • Machined from stainless steel with a black-oxide finish
  • Company recommends thread-locking compound during installation

Best Used For

  • AR-15 owners dealing with trigger or hammer pins that shift during use
  • Builders assembling a mil-spec lower receiver with standard .154 pin compatibility
  • Shooters wanting a pinned solution secured with included hex keys and thread-locking compound
  • AR .308 rifle owners needing anti-walk trigger and hammer pins for their receiver

Specifications

Blade FinishBlack-oxide
CompatibilityAR-15 and AR .308 receiver
DesignAnti-Walk
Fastening MethodTwo hex screws
Included AccessoriesKeys
Installation RecommendationUse thread-locking compound on the screws during installation
MaterialStainless steel
Pin Size.154
Product TypeTrigger and Hammer Pins

Pros

  • Anti-walk design helps keep trigger and hammer pins secured in place
  • Includes both trigger and hammer pins in one set
  • Standard .154 size fits AR-15 and AR .308 receivers
  • Two hex screws secure the pins during installation
  • Keys required for installation are included
  • Stainless steel construction with black-oxide finish

Considerations & Trade-offs

  • These pins are standard .154 size, so they are intended for compatible AR-15 and AR .308 receivers rather than every lower receiver setup.
  • Installation requires two hex screws and the included keys, so they add a little more setup than standard pins.
  • The manufacturer recommends using thread-locking compound on the screws during installation, which is an extra step to plan for.
  • The black-oxide finish is part of the design, but the product description does not provide any performance claims beyond the anti-walk function.

Suggested Comparisons

  • AR-15 lower receiver parts
  • AR .308 lower receiver parts
  • Trigger and hammer pin sets
  • AR platform small parts and accessories

Suggested Accessories

  • Thread-locking compound
  • Hex key set
  • AR-15 lower receiver parts kit
  • AR-15 armorer's tool

Frequently Asked Questions

What size receiver pins are these, and will they fit my AR-15 lower?

The pins are standard .154 size and are described as fitting AR-15 receivers.

Do these pins work on AR .308 receivers as well?

Yes. The product description says they fit both AR-15 and AR .308 receivers.

How are the pins kept from walking out?

They are secured in place with two hex screws as part of the anti-walk design.

Are the installation keys included?

Yes. The keys required for installation are included.

Is there any installation guidance provided by the manufacturer?

The description recommends using thread-locking compound on the screws during installation.