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Questions & Answers
will this trigger work in the ruger ar 556 Expert Answer

This ALG Defense ACT Advanced Combat Trigger is designed to work in Mil-Spec lower receivers. So yes it will work in a Ruger AR556.

by Hunter, Gear Expert, March 31, 2022
Is this new version that contains to the purple or tan spring? Expert Answer

This includes both the purple (4.5 lb) and tan (6.0 lb) hammer springs.

by Patrick, Gear Expert, October 5, 2021
Customer Reviews
Helpful Positive Review I keep an inventory of ALG trigger by Pocono Tactical, Verified Owner, May 9, 2021
AR-15 triggers have a limited life. Life expectancy is 5,000 rounds for reliability. I usually stretch them out to 10,000 rounds, but they can not be considered reliable after 5,000 rds. The first indication of the trigger group wearing out is that t...
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4/23 found this helpful
Helpful Positive Review Very Nice Trigger by Donnie Powell, Verified Owner, January 5, 2016
I replaced my trigger with this one and couldn't be happier. For the money this is a great trigger. I had original built my lower with the CMMG lower kit. Usually I can work on those and get them where I am happy but not this one. I didn't want a h...
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18/18 found this helpful
Helpful Positive Review act review by CHRIS URSINY, January 2, 2019
better than oem spec trigger, my friend has this in his dpms ar and he let me use it to compare with my factory trigger, this has less creep no gritty feel and a short clean break, this is not a 3 gun trigger this is simply a good upgrade from the...
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1/1 found this helpful
Helpful Positive Review ALG Defense ACT Trigger in Ruger AR 556 by S, Verified Owner, December 8, 2023
Excellent trigger for Milspec. Install took all of 12 minutes. Ruger AR 556 pull weight using Wheeler Digital (average of 5 pulls) Before install of ALG ACT 8lbs. 11.2oz. After install of ALG ACT 5lbs. 7.8oz.
1/1 found this helpful
Helpful Positive Review ALG ACT Tigger by Chris, March 3, 2023
I needed a trigger to complete a lightweight build. Nice trigger at a decent price. Much cheaper than a drop in. Comes with standard and lite pull springs. This would be great for a first time or budget build.
1/1 found this helpful
Helpful Positive Review ALG ACT trigger review. by Ron, March 3, 2024
Quality product, prompt delivery, fair price. Significant upgrade to a stock combat trigger. Has two springs for 4.5 lb or 6.0 lb pull.
1/1 found this helpful
Read All 120 Reviews

Best Rated Product

Our customers have spoken – this is one of the best rated products in the Gun Parts category! See more best rated Gun Parts products
Color: Light Grey Trigger Shape: Curved Trigger Pull Weight: 5.5 lbGun Make: AR Platform Gun Model: AR-10 , AR-15 Condition: New Finish: Matte

Code: 1SY-ART-ALG0127-05-199

MPN: 05-199

UPC: 854014005212

List: $116.97Save 29%
$82.95
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Product Info for ALG Defense ACT Advanced Combat Trigger for AR-15/AR-10

For the discriminating shooter who prefers a traditional trigger, the ALG Defense Advanced Combat Reliable Trigger is the way to go. The design of these Rifle Triggers from ALG Defense is close to the standard mil-spec original and conforms to most trigger pull weight regulations. Typically, the trigger pull averages about 6.0 pounds and remains well below the upper 9.5 pounds limit. The ALG Defense Advanced Combat Single Stage Trigger breaks crisp and clean while retaining stock trigger reliability. Experience a buttery smooth single stage pull when you install the ALG Defense Advanced Combat Trigger 05-199.image

Specifications for ALG Defense ACT Advanced Combat Trigger for AR-15/AR-10:

Manufacturer: ALG Defense
Color: Light Grey
Trigger Shape: Curved
Trigger Pull Weight: 5.5 lb
Gun Make: AR Platform
Gun Model: AR-10, AR-15
Condition: New
Finish: Matte

Features of ALG Defense Advanced Combat Reliable Trigger 05-199:

Performance Advantages for the Shooter
  • Pull is smoother and sharper than a stock trigger because sear surfaces are polished smooth and trigger components are treated with proprietary HardLube process
  • Sear geometry has not been changed from the standard profile so the high reliability that the stock trigger is known for is unchanged
  • Trigger and hammer are made from true 8620 alloy steel military specification castings, correctly carburized, quenched and tempered for high surface hardness
  • Disconnector is 1070 High Carbon steel properly Austempered into the spring range of hardness
  • Springs are corrosion resistant and meet military specifications
  • A full force hammer spring is used for positive ignition of all type of ammunition
  • Trigger and hammer pins are improved over stock mild steel by using 4140 Chrome-Moly steel that has been quenched and tempered. Pins are centerless ground to a fine finish and a diameter 0.001 inch larger than stock to reduce play in the trigger assembly while retaining a slip fit into the weapon lower receiver. Both pins are Nickel-Teflon coated.
  • Pull weight is above the U.S. Military minimum pull weight of 5.5lbs but does not reach near the upper limit of 9.5lbs. Generally, the pull weight is about 6.0lbs
Advantages for the Armorer
  • Enhanced standard trigger so maintenance and installation procedures are unchanged
  • Trigger assembly parts may be interchanged between triggers, there are no matched sets
  • As a trigger meeting the essential US Military trigger specifications for the M4 Carbine, the ALG Defense ACT can be substituted for lower performing stock triggers while still staying in compliance with Unit or Departmental requirements
  • ACT triggers now come with new black pins. These trigger and hammer pins are improved over stock mild steel by using precipitation hardened 17-4 stainless steel. Pins are precision ground to a fine finish, dimpled, and a diameter 0.001in larger than stock to reduce play in the trigger assembly while retaining a slip fit into the weapon lower receiver. Both pins are finished with a black Nitride finish for increased wear and corrosion resistance.

Package Contents:

  • ALG Defense ACT Advanced Combat Trigger for AR-15/AR-10

ALG Defense ACT Advanced Combat Trigger for AR-15/AR-10 Orderable Models

List of Orderable Models

ALG Defense ACT Advanced Combat Trigger for AR-15/AR-, 05-199 , MPN: 05-199 , UPC: 854014005212 , Code: 1SY-ART-ALG0127-05-199

ALG Defense ACT Advanced Combat Trigger for AR-15/AR-10 Unavailable & Discontinued Models

List of Unorderable Models

USED ALG Defense ACT Advanced Combat Trigger for AR-15/AR-10, ACT, EDEMO8, Condition Parts Only/Salvage, Defective , MPN: 05-199-EDEMO8 , Code: 1SY-ART-ALG0127-EDEMO-DF-F
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