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Sig Sauer

TRIGGER SPRINGS, AR DUO, PINS, DISCONNECT

Factory Replacement

Trigger springs for the SIG

Includes Pins

Disconnect components as part of

Intended Sig

AR DUO trigger system

Requires Firearm

Disassembly beyond a field-stripped condition

Designed Be

Installed as a full unit;

$49.99
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SKU: KIT-DUO-SPRING

Overview

Factory replacement trigger springs for the SIG AR DUO trigger are intended for users maintaining that specific system with the correct factory parts. These kits require disassembly beyond a field-stripped condition, so they are suited to qualified service work rather than routine user installation. The included parts are designed to be installed as a full unit, and substitutions may be incompatible. SIG SAUER specifies that only certified SIG SAUER armorers should install these kits.

Why Hunters Choose the Sig Sauer

Factory Replacement

Trigger springs for the SIG

Includes Pins

Disconnect components as a complete

Installation As

Full unit, reducing part substitution

Clear Installation

Guidance notes certified SIG SAUER

Suitable Users

Seeking original replacement parts for

Key Features

  • Factory replacement trigger springs for the SIG AR DUO trigger
  • Includes pins and disconnect components as part of the parts kit
  • Intended for the SIG AR DUO trigger system
  • Requires firearm disassembly beyond a field-stripped condition
  • Designed to be installed as a full unit; part substitution may be incompatible
  • SIG SAUER states only certified armorers should install these parts kits

Best Used For

  • Certified SIG SAUER armorers performing factory replacement on AR DUO trigger assemblies.
  • Owners needing full-unit replacement parts for SIG AR DUO trigger maintenance.
  • Armorer-level users prepared for disassembly beyond a field-stripped firearm condition.
  • Users replacing trigger springs as part of an authorized SIG SAUER parts kit installation.

Specifications

Assembly NoteIntended to be installed as a full unit; substitution of included parts may be incompatible and may lead to malfunction, serious injury, or death
CompatibilitySIG AR DUO trigger
Installation RequirementRequires disassembly of firearm beyond a field-stripped condition
Installation RestrictionOnly certified SIG SAUER armorers should install
Part TypeFactory replacement trigger springs
WarningImproper installation may result in malfunction, serious injury, or death
Warranty NoteDamage caused by incorrect installation is not covered by firearm warranty

Pros

  • Factory replacement trigger springs for the SIG AR DUO trigger
  • Includes pins and disconnect components as a complete parts kit
  • Designed for installation as a full unit, reducing part substitution uncertainty
  • Clear installation guidance notes certified SIG SAUER armorers should install the kit
  • Suitable for users seeking original replacement parts for SIG AR DUO triggers

Considerations & Trade-offs

  • Installation requires disassembly beyond a field-stripped condition, so this is not a simple drop-in replacement.
  • SIG SAUER states these parts kits should be installed only by certified SIG SAUER armorers, which limits DIY use.
  • The kit is intended to be installed as a full unit; substituting individual included parts may be incompatible and create malfunction risk.
  • Improper installation can lead to malfunction and serious injury, so careful service and verification are essential.

Suggested Comparisons

  • AR trigger components
  • Firearm maintenance parts
  • SIG SAUER replacement parts
  • Trigger spring kits

Suggested Accessories

  • Armorer's tools
  • Punch set
  • Gun vise
  • Replacement trigger components

Frequently Asked Questions

What is this product for?

These are factory replacement trigger springs for the SIG AR DUO trigger.

Can these parts be installed with a basic field-stripped firearm?

No. The description says installation requires disassembly beyond a field-stripped condition.

Who should install this parts kit?

SIG SAUER states that only certified SIG SAUER armorers should install these parts kits.

Is it okay to substitute individual parts from the kit?

No. The parts kits are intended to be installed as a full unit, and substituting included parts may be incompatible and may lead to malfunction, serious injury, or death.

Does the product information mention warranty coverage for installation damage?

Yes. SIG SAUER says damage caused by incorrect installation is not covered by the firearm's warranty, and SIG SAUER will charge for needed repairs to a firearm damaged by improper use or installation.