Triggers PartsAlg DefenseSold by Brownells

Alg Defense

Ar-15 Enhanced Military-Style Triggers - Qms Ar-15 Trigger Set

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

Enhanced Standard

AR-15 trigger set designed to

Precision-honed Sear

Contact surface helps smooth and

Maintains Original

Configuration for armorer familiarity and

Kit Includes

Trigger, hammer, springs, disconnector, pins,

Qms Pull

Weight is described at around

$65.00
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SKU: 100009796

Overview

This trigger set is designed for AR-15 owners who want a smoother pull without moving away from a familiar mil-spec layout. The QMS version uses precision-honed sear contact surfaces to lighten the pull to around 6 1/2 pounds, while the ACT version adds nickel-boron and nickel-Teflon coatings to reduce friction and average about 6 pounds. Both kits keep the original geometry intact, which makes them a practical option for armorers and shooters who prefer an enhanced standard trigger rather than a more radical change. It includes the core trigger, hammer, springs, disconnector, pins, and instructions needed for installation.

Why Hunters Choose the Alg Defense

Enhanced Standard

Trigger set preserves familiar military-style

Precision-honed Sear

Contact surface is designed to

Qms Set

Is described at approximately 6.5

Rugged Military-type

Components are carefully prepped for

Kit Includes

Trigger, hammer, springs, disconnector, pins,

Key Features

  • Enhanced standard AR-15 trigger set designed to keep familiar mil-spec geometry.
  • Precision-honed sear contact surface helps smooth and lighten the trigger pull.
  • Maintains original configuration for armorer familiarity and straightforward installation.
  • Kit includes trigger, hammer, springs, disconnector, pins, and instructions.
  • QMS pull weight is described at around 6.5 pounds.
  • Manufactured by ALG Defense.

Best Used For

  • For hunters or shooters who want a smoother pull while keeping a familiar mil-spec trigger layout.
  • For armorers maintaining standard AR-15 configurations without changing the original trigger geometry.
  • For users prioritizing a rugged trigger kit with included springs, pins, and installation components.
  • For shooters seeking an enhanced-standard option rather than a radically different trigger setup.

Specifications

Act Average Pull Weightabout 6 lbs
Act Coating On Disconnectornickel-Teflon coating
Act Coating On Hammernickel-Teflon coating
Act Coating On Pinsnickel-Teflon coating
Act Coating On Triggernickel-boron coating
Act Model MentionedALG Combat Trigger
Average Pull Weightabout 6.5 lbs
Disconnector Material1070 high-carbon steel
Hammertrigger Material8620 steel
Hammertrigger Pins Materialheat treated 4140 chrome-moly steel
Included Componentstrigger, trigger spring, hammer, 2 hammer springs, disconnector, disconnector spring, hammer and trigger pins, instructions
ModelQMS (Quality Mil-Spec)
Reliability Claimmaintaining the original geometry for maximum reliability
Smoother Pull Claimsmoother trigger pull
Surface Treatmentsear contact surface precision-honed
Trigger TypeEnhanced standard trigger set

Pros

  • Enhanced standard trigger set preserves familiar military-style geometry for armorer familiarity.
  • Precision-honed sear contact surface is designed to smooth and lighten trigger pull.
  • QMS set is described at approximately 6.5 pounds average pull weight.
  • Rugged military-type components are carefully prepped for a smoother pull.
  • Kit includes trigger, hammer, springs, disconnector, pins, and instructions.
  • ALG Defense ACT version adds nickel-boron and nickel-Teflon coatings on key parts.

Considerations & Trade-offs

  • These are enhanced standard triggers, so the feel is improved without changing the familiar mil-spec configuration; that also means they are not a drop-in departure from the original setup.
  • The QMS set is described at around 6.5 lb. pull weight, which is still a relatively firm trigger compared with lighter match-style options.
  • The ACT version adds nickel-boron and nickel-Teflon coatings, but the product data does not state any performance gains beyond reduced friction and increased surface hardness.
  • Both kits are supplied as component sets with springs, pins, and instructions, so installation and proper fitting remain part of the process.

Suggested Comparisons

  • AR-15 trigger kits
  • Mil-spec trigger components
  • Enhanced standard trigger sets
  • AR-15 lower parts kits

Suggested Accessories

  • Armorer’s tools
  • Trigger guard
  • Gun cleaning kit
  • Small parts organizer

Frequently Asked Questions

What is included in the QMS trigger set?

The kit contains the trigger, trigger spring, hammer, 2 hammer springs, disconnector, disconnector spring, and the hammer and trigger pins.

Is this a standard mil-spec trigger or an upgraded design?

It is described as an "enhanced standard" trigger set. The original geometry is maintained so the armorer continues to work with the configuration he is accustomed to.

What pull weight should I expect from the QMS set?

The QMS set has the sear contact surface precision-honed to smooth and lighten the pull to around 6 1/2 lbs.

What materials are listed for the trigger set components?

The specs list the hammer/trigger as 8620 steel, the disconnector as 1070 high-carbon steel, and the hammer/trigger pins as heat treated 4140 chrome-moly steel.

Does the product description mention compatibility with specific rifles or platforms?

The provided data identifies it as an AR-15 trigger set, but it does not give additional compatibility details beyond that.